While an individual’s disappearance, no matter how sudden, is often soon forgotten by most, leaving only those closest to the missing person affected, the situation becomes far more troubling when numerous people vanish together. When a large group disappears, it becomes clear that something deeply unusual and potentially sinister has occurred.
What’s even more intriguing is that these mass disappearance incidents are documented all the way back through history, spanning centuries and even millennia. Surprisingly, these disappearances continue to happen today. With the vast reach of the Internet and constant surveillance, one might hope that these mysteries will soon be unraveled. Until then, the dark fascination and speculation surrounding such events will persist.
10. The Anjikuni Lake Incident, 1930

In November 1930, while looking for a place to spend the night, fur trapper Joe Labelle discovered an Inuit settlement near Anjikuni Lake in Nunavut, Canada. Despite a fire burning under a pot of scorched food, there was no sign of the 30 members of the community.
What was even stranger was that each hut still contained the personal belongings of its inhabitants. The community’s food and fish supplies were untouched. It seemed impossible that the entire village could have just left without warning, and even more unlikely they would leave without their clothes, weapons, and food supplies.
Labelle contacted the Royal Canadian Mounted Police (RCMP) via the nearest telegraph office. A team was dispatched to the remote settlement. On the way, the Mounties stopped at the house of local trapper Armand Laurent, who told them about a strange, glowing object he had seen flying over his property several nights earlier. It was heading toward Anjikuni Lake.
When the RCMP arrived at the Inuit village, they confirmed it was completely deserted. Furthermore, the graves at the edge of the settlement had all been disturbed, and the bodies were missing. Even more bizarre, the stone markers had been neatly stacked into two piles beside the graves.
The mystery remains unsolved, despite two investigations by Canadian authorities in the early 1930s.
9. Roanoke Colony, 1587

The colony established on Roanoke Island, now part of modern-day North Carolina, was one of the first English settlements in the Americas. However, when John White, the colony’s governor, and his crew returned from a supply trip to Europe, they found the settlement completely abandoned.
All that was left behind was a single skeleton and the word “CROATOAN” carved into a tree. Many theories suggest that the settlers were attacked by the Croatoan tribe, who lived to the south of the colony. The word may have been a hastily scrawled message pointing to those responsible for the mysterious disappearance.
Another theory proposes that White’s delayed return, caused by a war in Europe, led the settlers to believe they had been abandoned. In this theory, they may have attempted to return to Europe but perished in the frigid waters of the Atlantic Ocean.
8. Mary Celeste, 1872

In December 1872, after departing from New York bound for Genoa, Italy, the Mary Celeste was discovered adrift without its crew or any signs of life about 740 kilometers (400 nautical miles) off the Azores islands.
Initially, it was thought that the ship and its crew had been attacked by pirates hoping to seize the cargo. However, the entire cargo and the crew's provisions remained untouched. The captain’s logbook was also found, suggesting something had caused the crew to abandon ship in haste, as they would have typically taken the log with them.
Though the mystery persists, M.K. Jessup proposed in his book The Case for the UFO that this bizarre event was part of a pattern of mass alien abductions throughout history. Of course, not everyone agreed with Jessup’s theory.
7. USS Cyclops, 1918

The USS Cyclops, part of the United States Navy, carried out operations in European waters during World War I. However, its strange disappearance didn’t happen in combat. Instead, it seems to have fallen victim to the infamous Bermuda Triangle, a region known for the unexplained disappearance of ships and aircraft.
In February 1918, the USS Cyclops set sail from Brazil. By March 3, it was confirmed the ship was near Barbados. Then, all communication abruptly stopped, and the vessel vanished with more than 300 crew members and passengers on board.
No distress signal or emergency call was ever received. Additionally, search efforts in the area surrounding the ship's last known location found no wreckage, debris, or any indication of what might have caused the sudden disappearance of such a massive vessel.
The fate of the USS Cyclops and the cause of its disappearance remain a mystery. Beyond the Bermuda Triangle connection, various theories have emerged, including the possibility that the ship was swallowed by a rogue wave or, more bizarrely, that the crew and passengers were victims of a mass alien abduction.
6. The Village Of Hoer Verde, 1923

In February 1923, the entire population of the small Brazilian village of Hoer Verde—600 people—disappeared overnight, leaving behind their belongings and food. A group of visitors stumbled upon the eerie scene as they ventured into the village. As they moved further in, it became clear that no one was present. An unsettling silence hung in the air, with no birds singing, no insects buzzing—nothing.
The visitors alerted the local authorities, who launched an investigation. However, there was no trace of the missing villagers, nor any clues as to where they might have gone. When police entered the village school, they discovered a chilling message scrawled on the blackboard: 'There is no salvation!' Nearby, a gun was found that had been fired within the past 24 hours.
Various theories regarding the fate of the Hoer Verde villagers focus on paranormal or extraterrestrial involvement. Some suggest that the political upheaval in Brazil at the time led the villagers to flee to avoid being caught in the middle of guerrilla warfare.
While this theory might seem reasonable at first, it doesn’t explain why the villagers left so abruptly without taking their clothes or food. Additionally, there are no reports of them appearing in other Brazilian communities, which would likely have occurred if they had simply relocated.
5. Anasazi Tribe, Late 1200s

The Anasazi tribe is considered one of North America’s most advanced ancient civilizations. Their presence dates back to as early as 1500 BC, and they inhabited what is now known as the Four Corners region of the United States, where the modern states of Colorado, Utah, Arizona, and New Mexico converge.
In the late 1200s, the Anasazi suddenly left their impressive settlements, which featured multi-story structures with up to 800 rooms. The tribe mysteriously disappeared without a trace.
Several Native American tribes today claim descent from the Anasazi, and their folklore suggests that the disappearance was a case of the Anasazi 'returning home.' This enigmatic event has sparked significant interest among proponents of the ancient astronaut theory, particularly due to the associated myths and legends.
These theorists also highlight unusual markings, such as spirals, found at ancient Anasazi sites. While conventional scholars interpret these as representations of the Sun, those who believe in the 'returning home' legends view these symbols as depictions of portals or stargates, offering a possible explanation for the tribe's sudden vanishing.
4. The Lost Civilization of the Indus Valley, 1500 BC

The disappearance of the Indus Valley Civilization is not so much a matter of them vanishing, but rather the mysterious circumstances surrounding their sudden disappearance. Some theories suggest that a targeted nuclear strike was responsible.
The focus of these theories is on the ruins of the ancient cities of Mohenjo-Daro and Harappa, which are located in present-day Pakistan. Ancient texts such as the Mahabharata indicate that these cities were once home to a thriving Indus Valley Civilization that was as advanced as ancient Egypt and Mesopotamia.
When researchers investigated the site, they uncovered sophisticated systems for drainage, sewage, brick baths, and drinking water. They also found over 40 skeletons scattered around. The way these bodies were arranged, along with the forensic evidence, pointed to a sudden and violent end.
British researcher David Davenport spent over a decade studying these ancient sites and the associated texts. He found signs of radiation and material fusion, suggesting an intense burst of heat. His research led him to conclude that a deliberate nuclear strike caused an explosion that obliterated the cities and destroyed the Indus Valley Civilization.
3. The Dahlsjo Case, 1965

On July 29, 1965, a mass disappearance occurred in Gothenburg, Sweden, an event that remains unparalleled in Swedish history. Four young men appeared to vanish without a trace.
Gay Karlsson, Jan Olof Dahlsjo, and Kjell Ake Johansson, close friends who worked together at a shipyard, were last seen on that rainy morning. They were driving a blue Volvo out of town, marking the final known sighting of the trio.
The reports of their disappearances came in at various times from concerned family members, which perhaps delayed the police in linking the cases together promptly.
None of the men held a driver’s license, which meant one of them was driving illegally. Though the young men occasionally found themselves in trouble for minor offenses (and seemed to have an abundance of money, whether by coincidence or not), they were generally seen as ‘good guys.’
Coincidentally, on the same day in Gothenburg, a fourth individual also disappeared. Hubner Lundqvist was traveling to Lysekil and passed through Gothenburg. He sent his family a postcard from there that simply said, “All is well, don’t worry!”
That was the last confirmed sighting of Lundqvist, though some speculate that he might have hitched a ride with the three missing men in the blue Volvo. Whether they were already acquainted or if it was a chance meeting remains unclear. The case has never been solved.
2. The Nina2013

The Nina, an 85-year-old yacht, vanished without a trace during the summer of 2013. The boat had a rich and remarkable history, including a victory in the ‘New York to Spain’ race just a month after its launch. By 2013, it was owned by David Dyche, who had planned to sail it from New Zealand to Newcastle, Australia.
Dyche and his crew set sail at the end of May 2013, but the Nina never reached its destination. Initially, it was hoped that the delay was due to poor weather, but after several days, New Zealand authorities initiated the largest maritime search in the nation's history. Despite exhaustive efforts, the Nina and its crew were never found. The once-celebrated boat remains missing to this day.
One intriguing aspect of this disappearance is the location: it occurred within the Bass Strait Triangle, an area of water that has long been associated with mysterious disappearances of ships throughout recorded history.
1. The Australian Ghost Ship Mystery2007

In April 2007, the ‘Australian ghost ship mystery’ captured global attention when the catamaran Kaz II vanished. Though only three people were involved, the unsettling details and the relatively recent nature of the disappearance make it a noteworthy case in the world of maritime mysteries.
A helicopter first spotted the 9.8-meter (32 ft) Kaz II drifting just off the coast of Queensland. Upon closer inspection, it was clear that the vessel had been abandoned. While the sail showed some damage, there were no other indications of a struggle. (The sail damage could have occurred while the boat was drifting, for instance.)
What made the discovery even more eerie was that the table had been set, as if the crew was preparing to sit down to a meal. Additionally, the engine was still running, and a laptop was open as though someone had been working on it moments before. Remarkably, all of the crew’s personal belongings remained onboard, and none of the life jackets had been touched.
Despite extensive investigations, authorities have not been able to determine the fate of the three experienced yachtsmen. However, they have ruled out foul play or the possibility that the disappearance was a hoax or staged event.