Thomas Marcum is no stranger to unexplained phenomenon underground. Besides being a highly-respected paranormal investigator and researcher living in the heart of the Appalachian Mountains in Southeast, Kentucky, Marcum has witnessed enough bizarre occurrences happening in the hills to make him start expecting to see anomalies rather than being surprised with something mysterious does appear. One of the places that has received much of Marcum's time and energy are the emptied coal mines throughout Harlan County. It is the history of mining that intrigues Marcum. Having worked around the mines since he was 13 years old, Marcum is familiar with much of the fascinating history coming out of the coal fields' abandoned portals. It is a dark and dingy history that defined the culture of Harlan County - hard work, blood, sweat and tears. But, there's more to the complex history of coal mining than is shared in textbooks, stored in local archives, and displayed at mine museums. The oral histories that are handed down by coal miners telling of their days toiling away far beneath the Earth's surface are some of the most astounding tales coming out of these hollows, surpassing time and continuing with new generations of miners and their families. It is these stories that Marcum looks for.