The Dyatlov Pass mystery has spawned dozens of conspiracy theories which have endured for more than sixty years, but a recent theory has made headlines - and has been trending on TikTok. So what is the new theory - and what does it have to do with the animated kids movie, Frozen? Subscribe to #BBCMyWorld here: null Incident pictures provided by the Dyatlov Memorial Foundation TikTok provided by @trashling At the height of the Cold War, in the dead of winter, a group of ten students led by Igor Dyatlov set out on a trip into the Ural Mountains - the range which divides Europe and Asia. Only one person who turned back early ever returned. The hiker's tent was found buried in the snow on a remote mountain, slashed open from the inside. The group's cameras, and pictures of the trip, were found inside. Their bodies were also found, some semi clothed, others with blunt force injuries. Two were missing their eyes, one was missing a tongue. Two separate investigations by Russian authorities – the latest started in 2019 – both concluded an avalanche was to blame. But people challenged these findings arguing among other things, no avalanche signs were reported by the initial search team, the slope angle above the tent didn't appear steep enough, and the avalanche started hours after any disturbance made by the team. Johan Gaume, and Alexander Puzrin, in an article published in the scientific journal Nature argue for the avalanche theory, using data from car crash tests on cadavers, and animation code borrowed from the kids movie, Frozen. Their models concluded that the cut the group made into a slope to anchor their tent, below a deceptively steep section of ground covered by a layer of weaker snow – combined with strong winds bringing down more snow during the night – could've triggered a small, delayed avalanche with enough force to break bones which could've hit the team while they slept while not leaving many signs. Although we probably won't ever know for certain what happened on that night, this theory does provide a more plausible explanation than others. Johan Gaume himself has stressed that this isn't a definitive answer saying that some things about the incident will never be explained. But for some people at least this theory could bring some closure to the story of nine students who headed out into the mountains over sixty years ago – and never came back. 0:00 Intro 0:20 The incident 1:00 The investigations 1:23 The theory 2:35 The legacy