Generate a random historical mystery from 100 unsolved cases -- each with the leading explanation, where one exists.
This generator draws from 100 unsolved or contested episodes across Disappearances, Unsolved Crimes, Lost Places & Treasure, Undeciphered & Unexplained, and Contested Deaths & Identities. Each gives the leading theory rather than just the puzzle -- including the ones now solved, like the Somerton Man identified in 2022 and the Dyatlov Pass avalanche modelled in 2021.
Every result here is drawn using crypto.getRandomValues() -- the Web Crypto API's cryptographically secure randomness -- instead of Math.random(), so it's genuinely unpredictable, not just statistically random. Learn more.
Find your next documentary or podcast rabbit hole, pick a research topic, seed a mystery novel, or run a quiz round that people actually argue about. The entries flag which cases have real answers and which are genuinely open, so you don't chase a solved one.
Generate draws one mystery at random using the site's cryptographically secure randomness, never repeating the case currently shown in single-result mode. Each draw states the puzzle and the best current explanation, and the Kind filter narrows the type.
A sample of what this generator can draw, spread evenly across the full list:
Jack the Ripper by sheer volume of writing, though the Voynich Manuscript may be the most stubbornly unsolved -- a whole illustrated book in a script nobody has ever read.
Several. The Somerton Man was identified as Carl Webb in 2022, Dyatlov Pass was explained by a 2021 avalanche model, and one Zodiac cipher was cracked in 2020 -- though it named nobody.
Carbon dating puts the vellum at 1404-1438, so it's genuinely old. Whether the text means anything, or was elaborate nonsense sold to a wealthy buyer, is still open.