Freelance Firefighter Peter Leschak Freelance firefighter Peter Leschak has battled forest fires in the Northwoods and the West for over 20 years. Hes written several works of nonfiction as well as a memoir, Hellroaring. His new book is Ghost of the Fireground: Echoes of the Great Peshtigo Fire and the Calling of a Wildland Firefighter. (HarperSanFrancisco). Its about the 1871 wildfire in Peshtigo, Wisconsin which was the deadliest fire in North American history. Coincidentally it started the very day and hour as the Great Chicago Fire.