A vibrant cartoon with colours and smooth animation. The Dyatlov Pass Incident In January 1959, ten Soviet university students and hikers traveled into the northern Ural Mountains of Russia for a skiing expedition. Their group was led by 23-year-old Igor Dyatlov. One member, Yuri Yudin, turned back early because of health problems. That decision saved his life. The remaining nine hikers continued into the mountains. They were expected to return in early February. They never did. When the group failed to come back, a search party was eventually sent out. On February 26, 1959, rescuers discovered their abandoned tent on the slopes of Kholat Syakhl, a mountain whose name is often translated as "Dead Mountain." And this is where things get disturbing. The tent The tent was still there, but the hikers weren't. Investigators found that the tent had apparently been cut open from the inside. Their boots, warm clothing and equipment were still inside. Yet the hikers had apparently left the tent in freezing temperatures without being properly dressed. Their footprints showed that several of them had moved downhill toward a nearby forest. Then the bodies started being discovered. The bodies The first five were found relatively quickly. They appeared to have died from hypothermia. But four others weren't discovered until months later, after snow melted. Some of those bodies had serious traumatic injuries, including fractures. One hiker, Lyudmila Dubinina, had severe chest injuries and was missing her tongue and eyes. Another, Semyon Zolotaryov, had major chest trauma. Those details helped create some of the wildest theories about the case. And then came the mystery There were reports of things that seemed strange: Some clothing reportedly showed traces of radioactive contamination. The hikers appeared to have abandoned their shelter in a hurry. Their tent was located on an exposed mountainside during extremely cold weather. Some bodies had significant injuries. There was no surviving eyewitness to explain what happened. For decades, people proposed theories ranging from an avalanche to military activity, an infrasound phenomenon, and much more bizarre explanations. The original Soviet investigation concluded that the hikers died because of an unknown compelling force. Modern investigations have generally focused much more on natural explanations, particularly a slab avalanche combined with severe weather and disorientation. But here's the part that makes it perfect for After Midnight Stories: We know how the hikers died. We still don't have a universally accepted reconstruction of exactly what happened during those final moments. Nine people went into the mountains. None came back. And when rescuers finally reached their campsite... the tent was still there.