On November 16, 2018, a clear Friday in the interior of Mato Grosso do Sul, Oswaldo Mendes Teixeira placed two backpacks in the trunk of a white 2004 Parati. He checked the tire pressure with his own gauge and left Dourados on the MS-384 highway with his daughter Beatriz in the passenger seat. They were going to the Serra da Bodoquena. They would return Sunday night. His wife stayed home. Chicken with okra was planned for their arrival dinner.
Sunday passed, Monday passed, and no one returned. This is the story of a 52-year-old father and his 17-year-old daughter who went camping in a limestone mountain range and dense forest during a long weekend and were never seen again. For four years and four months, the family waited. The police searched, the fire department tracked, the dogs sniffed, and nothing, no body, no sign, no clue leading anywhere.
Then a hunter stumbled upon an object buried among the roots of a wild fig tree seven kilometers from where the car had been found. What was inside that object changed everything that was known about the case and opened up questions that, to this day, remain unanswered.
The Serra da Bodoquena occupies a large area in southwestern Mato Grosso do Sul. It is a region of karst relief, meaning that the soil is made of ancient limestone, dissolved over millions of years by water, forming an underground labyrinth of caves, sinkholes, and rivers that run through the rock. On the surface, the vegetation is dense, a mixture of cerrado (Brazilian savanna) with patches of Atlantic Forest, tall trees whose canopies close and prevent light from reaching the ground in several places.
It’s a beautiful place, visited by tourists who go to Bonito and the surrounding region. But the mountain range has another side. There are unmarked trails, unregistered cave entrances, and stretches where cell phone signal is lost within a few steps. Anyone who leaves the main trail and enters these unmarked areas can walk for hours without encountering anyone.
Oswaldo knew that type of terrain. He wasn’t a mountaineer or a weekend adventurer. He was a man from the interior of Mato Grosso do Sul, raised near the forest, accustomed to dirt roads and animals in his path. He had been taking his daughter camping since she was nine years old. He always came back, always warned her, always kept his word.
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What is known is that Oswaldo and Beatriz arrived in the mountains that Friday. What is not known is what happened after the car was parked. And what was discovered four years later, buried in the undergrowth, raised hypotheses that the police themselves admitted they didn’t know how to reconcile.
It remains to be understood what makes an experienced father deviate from a path he himself had mapped out. What leads a teenager to write 23 pages in a notebook in the middle of a forest where no one could read? And why did the content of those pages disturb the forensic experts so much that the report recommended that part of the material be analyzed by a forensic psychologist?
To begin answering, we need to go back to Dourados, to the Jardim Água Boa neighborhood, to the simple house with a low wall and a porch with a rocking chair where Oswaldo Mendes Teixeira lived with his family since 2003 and worked as a refrigeration technician in Dourados, Mato Grosso do Sul.
He was a methodical man, one of those who noted the mileage in a notebook in the glove compartment and always changed the car’s oil on time. When he decided to take his daughter Beatriz camping in the Serra da Bodoquena mountains during that long weekend in November 2018, he did what he always did. He researched the region, informed his wife, checked the tires, and prepared a three-day itinerary with stopping points marked on a printed map, because he didn’t trust GPS in the mountains.
The idea for the trip came about during a dinner conversation a couple of weeks earlier. Beatriz had finished her exams for the term and was tired—not the kind of tired teenagers complain about, but the kind that makes you stop talking at lunch, stare at the wall with your fork in the air, and get out of the shower with red eyes without explaining why. Ivone, her mother, noticed. Oswaldo did too. And since Oswaldo wasn’t one to ask too many questions, he did what he knew how to do. He suggested a solution.
“Beatriz, do you want to go to Bodoquena with me for the long weekend?”
The question was simple. The answer was a nod and a half-smile that Ivone would later describe as the first sign of life from her daughter in weeks. Oswaldo began planning the next day. He already knew the Bonito region from a trip he had taken with his wife in 2011, when Beatriz was a child and stayed with her grandmother. On that occasion, they had visited the Blue Lake Cave and gone snorkeling on the Sucuri River.
But Oswaldo returned from there with a different desire. He wanted to explore the less touristy parts of the mountain range, the areas where the cerrado vegetation thickened and where the caves had no nameplates. He read about the region. He bought a field guide about the fauna and flora of Mato Grosso do Sul, which sat on the shelf for years, full of markings in red pen. That guide was later found in the back seat of the Parati.
In the days leading up to the trip, Oswaldo checked every item. A two-person camping tent. An old model, but well-preserved. A gas stove with a new refill. A 10-meter rope. A handheld flashlight and a headlamp. An aluminum canteen. 2 liters of mineral water, in addition to the canteens. Canned food for three days, insect repellent, sunscreen, a machete that belonged to his father with a wooden handle darkened from use, and the map, always the map.
Oswaldo didn’t use trail apps, he didn’t download routes on his cell phone. He said that “you read a map with your eyes and your finger, and that a cell phone screen goes blank when the battery dies.” It was a practical thought, not stubbornness. It was the logic of a man who had been repairing refrigerators and air conditioners since he was 20, and who had learned that what works without electricity always works.
On the map found unfolded on the passenger seat, three points were circled in pen. The first was the official entrance to the Serra da Bodoquena National Park, in the southern portion. The second was a natural viewpoint accessible by a secondary trail that appeared in some hiking blogs. The third was a cave identified only as “Gruta do Sapo” (Frog Cave), without official coordinates, without a sign, and without mention in tourist guides. Oswaldo had written next to it, in small handwriting, the phrase: “Entrance through Figueira Grande, left side of the stream.”
No one knows where he got that information. Ivone said she never heard her husband mention that name. Oswaldo’s friends, two work colleagues with whom he used to go fishing on weekends, said the same. The reference didn’t appear on any of the websites the police checked in the family’s computer history. It was as if Oswaldo had received the tip from someone who knew the mountains inside out, someone who knew things that weren’t on the maps.
The investigation attempted to trace this source in the following months. The police officer requested Oswaldo’s phone records from the weeks leading up to the trip. There were calls to refrigeration clients, to his wife, to his brother Gilmar, to his son Renato in Campo Grande. No unknown numbers. No calls that couldn’t be explained by the routine of a technician who serviced residences and small businesses in the city. If someone spoke to Oswaldo about the Gruta do Sapo (Frog Cave), they did so personally, in a casual conversation at a counter, in a chance encounter, in an afternoon chat that left no record anywhere.
Oswaldo frequented two bars in Dourados. One was downtown, near the refrigeration shop where he bought parts; the other was in the neighborhood, where he would have a beer on Fridays after his last job of the week. The owners of both establishments were informally questioned by the police. Neither remembered seeing Oswaldo talking to anyone outside his usual circle. Neither remembered hearing any mention of caves, mountains, or expeditions. The source of the information about the Gruta do Sapo (Frog Cave) died with Oswaldo or got lost somewhere the investigation couldn’t reach.
On the morning of Friday, November 16th, Oswaldo woke up at five o’clock, had black coffee with sliced bread, checked Parati one last time, and called Beatriz. She came down with her backpack already packed, a navy blue canvas backpack she had used since the eighth grade, with her name written on an inside label in cursive. Ivone accompanied them both to the gate, hugged her daughter, and kissed her husband.
“Take care of her,” said Ivone.
Oswaldo replied with the same phrase he always used: “We’ll be back before dark on Sunday.”
The Parati left the garage at 5:40 in the morning. Ivone stayed at the gate until the car turned the corner. Then she went inside, washed her husband’s coffee cup, and put it away in the cupboard. That was the last time she saw them both.
Beatriz Mendes Teixeira was 17 years old and in her second year of high school at a state school in Dourados. She was a reserved teenager with few friends, who spent her weekends watching nature documentaries on her bedroom computer. Her mother, Ivone, would later recount that Beatriz had a connection with her father that defied simple words. It was a relationship of shared silences, of fishing trips without conversation, and of walks where neither of them felt the need to fill the air with words.
At school, Beatriz wasn’t the type of student who stood out. She didn’t get the best grades, nor the worst. She sat in the middle of the classroom, near the window. She finished her assignments on time. She didn’t raise her hand to answer questions. But when the teacher asked for essays, she handed in texts that surprised everyone. Long, detailed, with a maturity that didn’t match her age.
A Portuguese language teacher, interviewed by police weeks after the disappearance, said that Beatriz wrote as if observing the world from a safe distance. As if she had already understood that certain things cannot be resolved by talking.
Beatriz had two close friends. One of them, Camila, lived on the same street and was in the same class. The other, Larissa, went to a different school and was known for a drawing course they both took after school during ninth grade. Camila told investigators that Beatriz had been acting differently in the weeks leading up to the trip. Not different in a frightening way, but quieter than usual. Which was saying a lot. She stopped replying to messages in the WhatsApp group, she stopped liking photos on Instagram. The last time they saw each other, on a Wednesday afternoon, Beatriz said something that Camila remembered without understanding at the time: “I need to get out of here for a few days, see things that don’t have walls in between.”
Camila thought it was just a figure of speech. Something a bored teenager would say. It wasn’t. Beatriz was going through a phase that her family noticed but didn’t name. Ivone used the word “closed off” when she spoke to the police officer. Her older brother, Renato, 24, who lived in Campo Grande and worked as an administrative assistant at a dealership, used another word: “suffocated.”
He said his sister called him occasionally at night and that, in the last few calls, she didn’t want to talk about school or friends. She wanted to know if he was happy living alone, if he missed home, if he thought it was possible to live differently. Renato said he answered as best he could, without really understanding what she was asking. No one in the family suspected anything serious. There were no signs of abuse, serious conflict, involvement with drugs or dangerous people. Beatriz was a teenager from the interior of Mato Grosso do Sul, who was growing up too fast on the inside and too slowly on the outside, and who found in her father the only companion who didn’t require an explanation.
Oswaldo understood this without needing anyone to explain. He wasn’t a man of many words, but he was present in a concrete way. The kind of father who fixes her bicycle without her asking, who leaves a chocolate on her pillow when he notices she’s cried, who suggests a trip when he feels the air at home is too heavy. The trip to the Serra da Bodoquena was, for Beatriz, more than just a camping trip. It was a pause, a breath of fresh air, a place where the silence between her and her father didn’t have to compete with the noise of the world.
Beatriz carried in her navy blue backpack a hardcover notebook she had received from her maternal grandmother the previous Christmas. It was a plain notebook, without lines, with a black cover and an elastic closure. Her grandmother gave it to her, saying it was for her to write whatever she wanted. Thoughts, drawings, poems, nonsense, anything. Beatriz used it very little until that November. There were two pages with scribbles of trees and one with a list of movies she wanted to watch. The rest was blank. Until the trip.
Also in the backpack was her father’s aluminum canteen. An old canteen, dented on one side, with the lid held on by a short chain. Oswaldo gave it to her when Beatriz was 13 years old, during a fishing trip on the Dourados River, and said that “a good canteen is one that shows signs of use.” Beatriz never went into the woods without it again.
When the Parati left Dourados that Friday morning, Beatriz was carrying her notebook, canteen, a flashlight, clothes for three days, and a compact digital camera borrowed from her brother, which Renato had left at his parents’ house on a previous visit. The camera had a 2-gigabyte memory card. It was never found.
What Beatriz was thinking as the car crossed MS-384 westward, with the sun still low and the soybean fields opening up on both sides of the road, nobody knows. What is known is that she chose to go. And that, of all the people in the world, she chose to go with her father. That choice, four years later, would be the thing that hurt Ivone the most. Not because she blamed her daughter, but because she understood that that trip was an act of trust, and that trust had taken Beatriz to a place from which she never returned.
The Serra da Bodoquena is a place where landmarks disappear without warning. The vegetation changes from cerrado to Atlantic Forest in just a few kilometers. And there are stretches where the trees cover the sky with such density that the midday light seems like dusk. Anyone who ventures onto secondary roads without a fixed reference point may walk in circles without realizing it, because the landscape repeats itself with a uniformity that deceives even those who know the place.
The Serra da Bodoquena National Park was created in 2000. It covers more than 76,000 hectares, spread across four municipalities: Bonito, Bodoquena, Jardim, and Porto Murtinho. The part visited by tourists is a small fraction of this territory. These are the marked trails, the rivers with transparent waters, the caves with artificial lighting and accredited guides. It’s the postcard image. But the mountain range is not just a postcard image.
There are over 200 cataloged caves in the region. And there are dozens, perhaps hundreds, that have never been cataloged. Formations that appear hidden behind rock walls, covered in ferns. Narrow cracks that you only notice when you are less than two meters away, openings in the ground that lead to underground galleries where the darkness is absolute and the echo returns your voice with a delay that has disoriented more than one experienced speleologist.
The karst soil of Bodoquena has a characteristic that is important to this story: it is porous. Rainwater infiltrates easily, dissolving the rock from the inside and creating voids. Over thousands of years, these voids form chambers, corridors, and natural wells. Some are stable, others are not. There are records of internal collapses in caves in the region, blocking passages that were previously passable. The terrain literally changes.
For those walking on the surface, the most immediate risk is not the caves, but disorientation. The Bodoquena forest, in its less frequented sections, forms such a dense canopy that it is impossible to use the sun as a reference point for much of the day. The ground is uneven, covered with dry leaves, exposed roots, and loose stones. The streams that could serve as a reference point change course with the rains and, in some sections, simply disappear, plunging into the rock and reappearing hundreds of meters further on, at another level.
In 2018, the park had no cell phone coverage across much of its area. There was a weak signal in some elevated points on the eastern edge, near the Bonito towers. But inside the forest, a cell phone became a dead weight in your pocket. There were no surveillance cameras on the secondary trails. Visitor entry was controlled at the administrative headquarters. But the side access roads, dirt roads that cut through farms and settlements, had no record of anything. It was possible to enter the mountain range via unofficial paths without anyone knowing.
Oswaldo entered through one of these paths. The dirt road where the Parati was found wasn’t an entrance to the park. It was an access road used by farmers in the region to reach pastures at the foot of the mountain range. It had no gate, no sign, no ranger. It ended in a widening of packed earth, where three or four vehicles could fit, surrounded by tall vegetation. From there, walking about 400 meters northwest, one reached an old trail, probably opened by hunters or palm heart harvesters who worked in the region in the 1990s, which led into the forest.
It was along this trail that the first two points on Oswaldo’s map connected. The first point was the makeshift parking lot itself. The second was the viewpoint, a rocky outcrop about two kilometers up the mountain, from where, according to reports on hiking blogs, it was possible to see the Salobra River valley from an angle that the official trails did not offer. The third point, the Gruta do Sapo (Frog Cave), was further on, in a section that the blogs did not mention and that the official maps did not record.
Oswaldo had marked this third point with a double circle, as if it were the most important of the three. As if it were the true destination. To this day, no one has been able to determine who told Oswaldo about this cave. The name does not appear in speleological publications. It is not listed in the records of CECAV, the National Center for Cave Research and Conservation. A search in forums and hiking groups in Mato Grosso do Sul found no mention whatsoever of the term “Gruta do Sapo” (Frog Cave) in the Serra da Bodoquena. The place existed, or at least someone convinced Oswaldo that it existed. And he went looking for it.
When the firefighters retraced Oswaldo’s likely route, following the trail and the first two points on the map, they found signs of recent passage in the first few kilometers. Broken branches at waist height, boot marks in the dry mud, a piece of silver duct tape stuck to a tree trunk—the type of tape Oswaldo used at work and which Ivone confirmed he carried in the side pocket of his backpack for improvising repairs. These signs went all the way to the viewpoint. After the viewpoint, they disappeared. As if, from that point on, the mountain had swallowed them both without leaving a trace.
Ivone Aparecida de Souza Teixeira waited for her husband and daughter to return on Sunday, November 18, 2018. She had prepared chicken with okra, because it was Beatriz’s favorite dish, and because she knew they would arrive hungry from the road trip. At six in the afternoon, the sun had already set and the pot remained on the stove, covered. At eight, she called Oswaldo’s cell phone. Voicemail. She called Beatriz’s. Voicemail. She called again at nine. Again at ten. At eleven-thirty, she called her brother-in-law and said a phrase that he would later repeat to the police: “Oswaldo is never late. Never.”
The brother-in-law was Gilmar, Oswaldo’s younger brother, who lived on a farm on the outskirts of Dourados, towards Itaporã. Gilmar knew his brother as well as Ivone did. He knew that Oswaldo was the type of guy who, if he said he’d be back before dark, would be back before dark. If he’d had car trouble, he would have found a way to let them know. If he’d changed his plans, he would have called. Oswaldo wasn’t one to improvise without communicating.
Gilmar told Ivone to wait until Monday morning. Something simple could have happened: a flat tire on a stretch of road without traffic lights, a broken engine, heavy rain that closed the dirt road. He said that early Monday morning he would go to the mountains personally, if necessary. Ivone agreed. She hung up the phone and sat in the rocking chair on the porch. She didn’t sleep.
On Monday, November 19th, Ivone called both cell phones again at six in the morning. Voicemail. At seven, she called Gilmar. He was at home. She gave her husband’s and daughter’s full names, and the approximate direction they had taken. The police officer who answered said he would register the incident and send a patrol car to check the vicinity of the park. This registration was made. But the verification only happened the following day.
In 2018, Brazil lacked an integrated search system connecting information between municipalities in real time. There was no way to track a switched-off cell phone. There was no way to know if a person had entered or left the park, because the side access points were not monitored. The disappearance of two people in a wooded area, with no witnesses and no apparent signs of violence, went into the queue like any other incident. And the queue was long.
Ivone didn’t know that. Ivone thought that when you call the police and say that a father and daughter haven’t returned from the mountains, someone immediately goes out to look for them. That’s not how it worked. And the time lost between the first phone call and the first effective search, almost 48 hours, would later be pointed out by the family itself as a factor that may have made a difference.
On Monday night, with no news, Ivone called her son Renato in Campo Grande. The call lasted 40 minutes. Ivone cried for 39. Renato took the car on Tuesday morning and drove to Dourados. When he arrived, his mother was on the porch, with her cell phone in her lap, looking out at the street. Renato would then describe that moment, which was recorded in the case file. He said his mother seemed to have aged ten years in two days. Not because of dark circles under her eyes or wrinkled clothes, but because of her eyes. He said his mother’s eyes had an expression he had never seen before. It wasn’t despair, it wasn’t panic. It was the expression of someone who already knows, but hasn’t yet accepted it.
On Tuesday, November 20th, Gilmar left Dourados in the early morning heading towards the Serra da Bodoquena. He took a neighbor who knew the region. The two traveled the access roads to the park all morning, stopping at farms, asking residents if anyone had seen a white Parati. Nobody had seen it.
It was the military police who found the car around 1:30 PM. A patrol car that was patrolling the rural area located the Parati at the entrance to a secondary trail, locked, with no signs of forced entry or violence. The radio contacted the police station. The police station contacted Gilmar, who was 40 minutes away. Gilmar contacted Ivone.
When Ivone received the call saying that the car had been found, but that Oswaldo and Beatriz were neither in it nor in the vicinity, she did something that Renato would later describe as the moment the switch flipped. Ivone hung up the phone, went to the kitchen, took the pot of chicken and okra off the stove, where it had remained untouched since Sunday, and threw everything in the trash. Then she washed the pot, dried it, and put it away in the cupboard. He never made chicken and okra again.
On Tuesday, November 20th, two days after the return deadline, the military police patrol located Oswaldo’s white Parati parked at the entrance to a secondary trail, 12 kilometers from the headquarters of the Serra da Bodoquena National Park. The car was locked. Inside, there were two empty water bottles, a rolled-up sleeping bag, and Oswaldo’s printed map open on the passenger seat, with three points circled in pen. The last of these was the Gruta do Sapo (Frog Cave), which has no official signage, no marked trail, and is not listed in the region’s tourist guides.
The Civil Police forensics team arrived at the scene on Wednesday morning. Two experts from Bonito, accompanied by an investigator and a military police officer who knew the area, opened the car with the spare key that Ivone had provided. There were no signs of a struggle, blood, or forced entry. Everything inside the vehicle was organized as one would expect from someone who parks the car, locks it, and continues on foot, except for one detail: the sleeping bag was in the back seat, rolled up and tied with a rope.
Oswaldo had brought two sleeping bags, one for himself and one for Beatriz. There was only one in the car. The other, presumably, was with them. This meant that either they planned to spend the night in the woods or they had already spent the night there and returned to the car at least once before leaving again. The forensic investigation could not determine which of the two hypotheses was correct. In the trunk, besides the backpacks that had already been removed, there was a pair of flip-flops, a half-empty 5-liter water jug, and a toolbox. Nothing was missing. Nothing was out of place.
Oswaldo’s car told the story of a man who calmly parked and got out with a plan. The problem was that the plan led to a place no one knew.
The Bonito police station opened an investigation on Thursday, November 22nd. The police report, initially registered as a disappearance, was classified as “disappearance of a person in an area of environmental risk,” a category that automatically alerted the Fire Department. The responsible delegate, based in the Bonito Regional office, requested support from the Mato Grosso do Sul Military Fire Department and ICMBio, the managing body of the National Park.
While the bureaucratic process continued, Gilmar did what any brother would do. He went into the woods. On Wednesday afternoon, without waiting for authorization, without a rescue team, and without adequate equipment, Gilmar grabbed a flashlight, a bottle of water, and a machete, and followed the trail leading from the makeshift parking lot. He walked two kilometers. He shouted his brother’s name until he was hoarse. He heard no answer. He found no trace.
The vegetation closed in on both sides, and he realized, as the sun began to set, that he could no longer identify where he had come from. He returned, following the sound of a stream that luckily led him to a clearing near the dirt road. He reached the car with his hands cut by vines and the certainty that this search required prepared personnel.
The information about Oswaldo’s map, especially the third point, Gruta do Sapo (Frog Cave), was passed on to the Fire Department before the first search operation. The firefighters consulted ICMBio, which in turn consulted CECAV. None of the three institutions had a record of a cave with that name in the Serra da Bodoquena. There were known caves in the region: Gruta do Mimoso, Gruta do Rio Salobra, Gruta das Fadas. But none called Gruta do Sapo.
Oswaldo’s note, “entrance through Figueira Grande, left side of the stream,” was both too precise to be invented and too vague to be located. There were dozens of wild fig trees in the mountains. There were dozens of streams. The combination could apply to any number of points. The firefighters decided to work with what they had.
They started from the parking lot, retraced Oswaldo’s likely route to the viewpoint, where signs of his passage were confirmed, and expanded the search from there, in a fan shape, covering areas of dense forest with sniffer dogs and drone overflights in sections where the canopy allowed aerial visibility.
During the first two days of the organized search, Thursday and Friday, the dogs reacted twice. The first reaction occurred in a wooded area 800 meters northwest of the viewpoint. The dog indicated the ground, was released, and followed for 30 meters before stopping, confused, spinning around itself. The handler interpreted this as a loss of scent, possible in karst terrain, where scents are dispersed through cracks and underground air channels.
The second reaction was more significant. The other dog froze in front of a rock formation partially covered by vegetation, approximately 1.5 km northwest of the viewpoint. The formation had a narrow opening at its base, narrow enough for a person to pass sideways, but not head-on. The dog barked three times and retreated, which the handler described as atypical behavior. Normally, when a dog finds a strong scent, it advances. This dog retreated.
One of the firefighters entered through the opening with a flashlight and safety rope. He advanced six meters down a low corridor of damp rock. The corridor gradually narrowed and ended in a collapse, with piled-up blocks of limestone blocking the way. There was no way to go any further. There were no signs of recent human presence.
But when the firefighter came out and reported what he had seen, he mentioned something that didn’t make it into the official search report, but which would be repeated later in informal conversations among the team. He said that, behind the rock blocks, he felt a current of air. It wasn’t the stagnant air of a dead-end cave. It was air coming from somewhere. Moving air. This meant that, behind the collapse, there was space. Perhaps another corridor. Perhaps a chamber. Perhaps an exit. But without clearing equipment and without speleological mapping, there was no way to verify.
The search continued for another four days. They covered a five-kilometer radius around the car and then expanded it to seven. The military police helicopter flew over the area twice. Ground teams swept trails, stream beds, and sinkhole edges. They found nothing. On November 28, 2018, 12 days after the disappearance, the search operation was officially called off due to a lack of new leads.
The final report stated: “No trace found other than the vehicle and tracks along the first two kilometers of the trail. Whereabouts of the victims: unknown.”
The Bonito Fire Department assembled the first search team on Wednesday the 21st. It consisted of seven men, two sniffer dogs, and a drone with a 40-minute flight time. The initial search area covered a 5-kilometer radius around the car. In the first two days, the dogs responded twice, but what happened between the official end of the search and the months that followed revealed more about the system’s limitations than about the whereabouts of Oswaldo and Beatriz.
When a search operation ends in Brazil, the case doesn’t disappear. It changes hands, leaving the field and going to the police station. The investigation remains open, but without the pressure of operational urgency. The rescue teams return to their bases. The dogs return to their kennels. The drone returns to storage. What remains is paperwork, telephones, and the hope that someone will turn up, alive, with information, or in some other way.
The detective in charge of the case in Bonito was a woman in her early forties, transferred from Corumbá two years earlier, accustomed to difficult cases in rural areas. She knew the limitations of the system. She knew that disappearances in wooded areas, without witnesses and without evidence of a crime, often went unsolved for years, sometimes forever. She didn’t say this to Ivone, but she thought it.
The investigation followed all possible lines of inquiry. The first hypothesis was an accident: a fall into a cave, a fall from a cliff, an animal attack, drowning in a river or natural pool. The Serra da Bodoquena mountain range offered all these possibilities. The second hypothesis was a crime: robbery, kidnapping, an encounter with illegal hunters or people involved in illicit activities in the region. There was nothing to support this line of inquiry, but it existed as a formal possibility. The third hypothesis, less discussed in depth, was voluntary departure, the possibility that Oswaldo, for personal reasons, had decided to disappear, taking his daughter with him.
Ivone rejected the third hypothesis with a firmness that the delegate respected. She said that Oswaldo had no serious debts, no problems with the law, no extramarital affairs. He had no psychiatric history. She said that her husband was a simple man who liked to fish, fix refrigerators, and take his daughter to the countryside. She said that, if he could, he would be there at that table, sitting, with a coffee in his hand, calmly explaining everything.
The police officer listened, recorded, and continued investigating the three leads in parallel, as required by procedure. In the following months, the case was included in Sinalid, the National Missing Persons System, maintained by the Ministry of Justice. Photos of Oswaldo and Beatriz were distributed to police stations in the region. The local press published their faces in articles that circulated for two weeks and were later replaced by other urgent matters.
Information from outside arrived in dribs and drabs. A farmer said, in January 2019, that he had seen an extinguished campfire in a wooded area, but couldn’t specify the date. The team went to the location. They found ancient ashes, impossible to date. Another resident said he heard screams one night in November, but didn’t know if it was people or animals. I didn’t know the exact date. I didn’t know the direction. They were fragments that didn’t fit together.
The delegate requested a more detailed mapping of the caves in the area from ICMBio. ICMBio reported that a complete speleological survey of the Serra da Bodoquena had never been completed. The region where Oswaldo had parked was in a poorly studied area, where access was difficult and scientific interest had been lower.
In March 2019, the delegate convened a meeting with the Fire Department and a volunteer speleologist from the Brazilian Speleological Society. The speleologist analyzed Oswaldo’s map and said that the description “Figueira Grande, left side of the stream” was consistent with the type of indication that long-time residents of the region used. It wasn’t urban hiker slang. It was the language of people from the countryside. The speleologist offered to conduct an exploratory expedition. The delegate authorized it.
The expedition took place on a Saturday in April 2019, under a light rain. He retraced his steps to the Mirante viewpoint. Then he descended a slope to the northwest and followed the bed of an intermittent stream. The speleologist entered with a flashlight and helmet. He advanced through a narrow, descending corridor. After about 15 meters, the corridor widened into a low chamber with signs of ancient human occupation: soot marks on the ceiling, charcoal remains on the floor, a piece of rusty wire. But there was nothing that linked that place to Oswaldo or Beatriz.
The case went back into the drawer. Not the drawer of oblivion, but the drawer of impotence, which is worse. Ivone continued calling the police station every Monday. She kept Beatriz’s room untouched. She kept Oswaldo’s slippers next to the sofa. The coffee mug with the Corinthians logo stayed on the dish rack, always washed, never put away. Renato came from Campo Grande every two weeks. Gilmar visited on Wednesday nights, bringing cheese bread.
Ivone closed the living room windows, stopped going to mass, stopped going to the market. She shopped at times when she knew there would be fewer people. She didn’t want to be the wife of the missing man. 2019 turned into 2020. The pandemic arrived. Ivone became more isolated. Renato stopped coming every 15 days. The calls to the police station continued.
In 2022, Renato got married in Campo Grande. Ivone went to the wedding. At the reception, she sat near the exit. When Renato said she looked beautiful, Ivone held her son’s hand and said, “Your sister would like to see this.” It was the only time in four years that she mentioned Beatriz aloud.
And then, one morning in March 2023, the phone rang. It was the police chief. The voice was different. It wasn’t the usual polite, empty voice. It was the voice of someone who had something concrete to say.
In March 2023, a hunter named Reginaldo Assis Borba entered a stretch of dense forest southwest of the Serra da Bodoquena mountain range, accompanied by a mixed-breed dog named Trovão. Reginaldo was 61 years old, had been hunting since he was 14, and knew those woods like the back of his hand. That morning, Trovão froze in a position Reginaldo had never seen before. Body low, ears flattened, snout pointed towards the ground among the roots of a wild fig tree, without barking, without moving.
Reginaldo knew nothing about Oswaldo and Beatriz’s case. He didn’t watch the news often. He didn’t use the internet. That morning, he was following the trail of a peccary. Trovão changed its behavior. It veered to the left and stopped in front of the wild fig tree with its thick trunk. Reginaldo approached, pushed aside a layer of foliage, and felt something solid under his fingers. Something that wasn’t a root, wasn’t a stone, and wasn’t an animal bone. It was fabric.
He dug with his hands. In a few minutes, the shape revealed itself. A small navy blue canvas backpack with frayed seams. He used the knife to force open the rusty zipper. Inside were three objects: a black hardcover notebook, a dented aluminum canteen with the lid held on by a short chain, and a flashlight with corroded batteries. All three were damp, but not soaked. Their position among the roots protected them from the rain.
Reginaldo later said he felt something he couldn’t name. It wasn’t fear. It was a kind of weight, as if the air around the fig tree was denser than in the rest of the forest. He took the object home. His wife said he should take it to the police. The next day, he went to the police station in Bodoquena. From there, the information went up to Bonito. From Bonito it reached the police chief.
The detective opened the backpack on the table. She saw the canteen, the flashlight, and the notebook. He opened the notebook to the first page. He read. He closed it. He opened it again. Then he searched the file for the list of belongings that Ivone had described. He found it. “Daughter’s navy blue canvas backpack, with an internal label bearing her name.” He turned the backpack over. You found the label. In faded cursive handwriting: “Beatriz MT”
The backpack was seven kilometers from the car. But the most disturbing thing wasn’t the distance. It was that someone had placed the backpack there, under the roots, and deliberately covered it. It wasn’t an object that had fallen and been covered by the earth over the years.
The notebook had 23 pages of writing. The forensic examination confirmed that the handwriting was Beatriz’s. The calligraphy was the same, cursive writing slanted to the right, with firm strokes on the consonants and open loops on the vowels. There were no signs of physical coercion. The first seven pages recounted the trip as a field diary. Beatriz recorded her departure from Dourados, her arrival at the mountain range, the walk along the trail, and the stop at the viewpoint.
He noted that his father was excited, that the weather was fine, and that they had seen a toucan with a green beak. He wrote that the viewpoint was beautiful, and that the air up there was different, thin and clean. He copied tree names from his father’s field guide. On the seventh page, the last sentence was: “Dad said it’s over there, next to the big fig tree.”
The eighth page began differently. The font was the same, but the line spacing increased. The sentences were shorter. Beatriz wrote… The following pages described the interior of a cave. Total darkness, the sound of running water, a smooth, wet floor, a low ceiling. Dad used his flashlight sparingly. He mentioned the cold. He mentioned hunger.
Dad was trying to find the exit by following the air current, but the passages were splitting. On the twelfth page, Beatriz wrote: “Everything closed.”
This statement raised questions that the investigation was unable to answer. Had Oswaldo visited that cave before? Ivone was unaware of any previous visit. And what did “all closed” mean? Passages obstructed by collapses? This was consistent with what the firefighter had observed in the rock formation during the 2018 search.
If the Frog Cave was the same formation where the dog retreated and where the firefighter felt the air moving, then Oswaldo and Beatriz had entered through a passage that later collapsed behind them. But if the entrance collapsed, how did the backpack end up outside? Someone left the cave. Someone walked to that point. Someone dug and placed the backpack there.
On page sixteen: “I found something on the floor. It looks like someone else’s clothes. Is it rotten?”
If Beatriz found someone else’s clothing inside the cave, someone before them had been there and possibly hadn’t left. And there was another implication. If someone had died in that cave before, then the person who pointed out the location to Oswaldo knew that that cave had already claimed a life.
From the eighteenth to the twenty-first page, Beatriz described sounds she couldn’t identify. She wrote: “There’s something here with us. I don’t know what it is. Dad doesn’t hear it. Or he pretends not to hear it. Then, the noise comes from below, like dragging, like a stone moving by itself.”
The forensic psychologist who analyzed the material said that the content was consistent with a state of confusion caused by environmental stress. But he added that the sentence structure, even on the later pages, was coherent. There were no classic signs of delirium. The girl described what she perceived clearly.
On the twenty-second page: “Dad won’t wake up. I’m shaking him. He’s freezing. Dad, wake up.”
In the twenty-third letter, the handwriting was smaller, tighter: “I’m going to put everything in my backpack and leave it here. If anyone finds it, my name is Beatriz Mendes Teixeira, from Dourados. My mother is Ivone. My brother is Renato. We went into a cave next to the stream and couldn’t get out. My father is here with me. He’s sleeping. I’m going to try to get out alone.”
The remaining pages were blank. The backpack was seven kilometers from the car. The backpack was buried outside. If Beatriz wrote that she was going to pack everything up and try to leave, and if the backpack was found outside the cave, then Beatriz left. She left at least to that point. She dug among the roots, put the notebook, the canteen, and the flashlight inside, covered it with earth. And then she kept walking.
Where to? Nobody knows. Nobody saw a teenage girl alone in the area. And she walked through terrain where disorientation kills more than falls. May her body be somewhere in that forest, covered by leaves, by rain, by time.
In the following months, searches using LIDAR technology identified three depressions consistent with cave entrances. Two were shallow sinkholes. The third was on a steep slope. An expedition was organized in August 2023. The team found a partially obstructed opening. They entered a corridor that extended for 22 meters before splitting.
One passage ended in a collapse. The other continued for another 30 meters to a large chamber with a stream at the bottom. In the chamber, they found signs of human presence. Recent soot. A piece of synthetic rope and, on the floor, partially covered by sediment, a machete with a wooden handle darkened by use.
Ivone was called to identify the bodies. It took her no more than three seconds. She said, “It’s Oswaldo’s. It belonged to his father.” But the bodies were never found. Not in the main chamber, nor in the adjacent corridors, nor in the obstructed passages. The cave continued downwards, inwards, to places where the flashlight couldn’t reach.
The investigation remains open. The case is classified as “disappearance without victims located, with strong indications of an accident in an underground environment.” Ivone returned to Dourados, to the house with the low wall and porch with a rocking chair, to Beatriz’s intact room and to Oswaldo’s slippers.
But now I had the notebook. 23 pages written by my daughter in the dark. And it had the last sentence, which she read every night before going to sleep: “My name is Beatriz Mendes Teixeira, from Dourados. My mother is Ivone.”
It was the daughter identifying herself to a stranger who might never arrive. It was the daughter saying who she was, where she came from, and to whom she belonged, as if she knew that written words last longer than those who write them. And they did.
Brazil is vast, and within that vastness there are mountains, forests, and caves, where people enter and never emerge. There are families who wait. There are police stations that investigate with what they have. There are firefighters who search as far as the terrain allows. And there are limits—limits of the land, of time, of technology—that no one surpasses, no matter how much they want to. The silent resistance of those who wait indefinitely is the most common and invisible thing in this country. It happens inside simple houses, in small towns, on porches where someone sits every night and looks out at the street, waiting for a car that never comes.
There are things we can’t explain. There are things we just keep to ourselves. While the case of Oswaldo and Beatriz remains open in the Serra de Bodoquena, there is another case in Brazil that follows a different path, and which is therefore even harder to accept. A 24-year-old man disappeared on a trail in Pico da Bandeira, in the Serra do Caparaó. A trail he had already hiked six times. His friends returned. He did not.
Four years and three months later, this young man appeared walking alone along a secondary road, 30 kilometers from the park. Alive. Conscious. What he said about where he had been doesn’t fit any explanation that the police or doctors have been able to offer. This story is the video that now appears on your screen. There are cases that end without answers. And there are cases where the answer is worse than the question.
