The story of the death of 9 tourists at the foot of the Dead Mountain—where, according to legend, the last resting place of nine Mansi was found—is shrouded in mysteries and mysticism. For more than half a century, debates have continued about the causes of that tragedy: anomalous natural phenomena or technogenic factors? Were the Dyatlov group members victims of a “force of nature they… were unable to overcome,” as stated in the ruling to terminate the case—or was it an intentional crime? What “fireballs” did local residents see in the sky that night? How can it be explained that the bodies of three people who were born on January 11, 12, and 13 were found laid out one after another in the same order? What made them at night cut the tent in terror and flee the campsite without looking back? How are their numerous injuries, mutilations, and signs of radioactive contamination explained? Are there any “classified” pages in this story kept by the authorities in order to prevent “information leaks”? The authors of this book conducted their own investigation, and it would not be an exaggeration to say that it began “while the tracks were still fresh,” because it was the search team led by Boris Slobtsov that found the Dyatlov group’s tent and the first dead. Working with other searchers, analyzing all, including hard-to-access material, separating false facts from true ones, the authors offer the most convincing version of what happened—today at the foot of the Dead Mountain.