Archive index
Investigations
Browse all dossiers in the archive. Each investigation compiles documented claims, counterarguments, key figures, timelines, and source references.
151 DOSSIERS
Tamam Shud (Somerton Man)
The 1948 death of an unidentified man on Somerton Park beach in Australia, with a cryptic message reading 'Tamám Shud' (ended) found in his pocket.
Green Children of Woolpit
A 12th-century English chronicle describing two green-skinned children who appeared near the village of Woolpit, speaking an unknown language and claiming to come from an underground world.
Dancing Plague of 1518
A bizarre 1518 event in Strasbourg where hundreds of people danced uncontrollably for days, some until death, with causes ranging from mass hysteria to ergot poisoning.
Antikythera Mechanism
A 2,000-year-old Greek analog computer discovered in a shipwreck, capable of calculating astronomical positions, eclipses, and the Olympic Games cycle.
Dyatlov Pass Incident
The mysterious 1959 deaths of nine experienced hikers in the Ural Mountains under circumstances that investigators described as involving 'irresistible force.'
Tunguska Event
The massive 1908 explosion in Siberia that flattened 2,150 square kilometers of forest, widely attributed to a meteor airburst but still generating alternative theories.
Voynich Manuscript
A 15th-century illustrated codex written in an unknown script that has resisted all attempts at decipherment for over a century.
Mary Celeste
The 1872 discovery of the brigantine Mary Celeste sailing under full sail in the Atlantic with no crew aboard, their whereabouts never determined.
Roanoke Colony
The 1587 'Lost Colony' of Roanoke Island, where 115 English settlers vanished, leaving only the word 'Croatoan' carved into a palisade.
D.B. Cooper
The 1971 hijacking of Northwest Orient Flight 305 by a mysterious man who parachuted into the night with $200,000 ransom and was never identified or caught.
Sodder Children Disappearance
The 1945 Christmas Eve house fire in West Virginia where five of ten Sodder children vanished without trace, leading the family to believe they were not in the fire.
Flannan Isles Lighthouse Disappearance
The 1900 disappearance of three lighthouse keepers from the Eilean Mor lighthouse in the remote Flannan Isles of Scotland.
Lead Masks Case
The 1966 deaths of two Brazilian electronics technicians found dead on a hilltop wearing lead masks, with no apparent cause of death and a cryptic note about extraterrestrial contact.
Vodka Kadzov Mystery
The 2001 disappearance of 11-year-old Kadzov from his Bulgarian village, with evidence suggesting he was taken by a UFO, investigated by the Bulgarian government.