In 1959, nine experienced Russian skiers died under mysterious circumstances, referred to as the Dyatlov Pass incident. Bodies found in different locations with varying amounts of clothing and an array of injuries. The facts made for ripe speculation: stumbling on a secret government project, a sadistic murderer, American spies, and the supernatural.
In 2021, Douglas Preston covered the history of the investigations, and modern science may have solved it. The likeliest culprit? An Avalanche.