511 Days of Total Darkness: The Incredible True Story Behind the Documentary No Place on Earth

In 1993, shortly after the collapse of the Soviet Union, NYPD officer and caving enthusiast Chris Nicola set out to Western Ukraine to explore Verteba and the Priest’s Grotto Cave, one of the longest cave systems in the world. Inside the caves—dark, damp, and stifling, wholly inhospitable to human life—he found the unthinkable: buttons, shoes, a house key, artifacts of human habitation decidedly recent. Upon returning from the caves, his attempts at discovering the origins of these items led him to only the offhand comment from a local villager that,