Explores several events that have baffled scientists and historians for years, such as the demise of dinosaurs, the lost colony" of Roanoke, the sinking of the Maine, and the Hindenburg disaster.
He grew up in rural Cochranton, Western Pennsylvania, where he attended school in a one room schoolhouse. He graduated with a B.A. in English from Grove City College in Pennsylvania. While a college student, Blackwood published his first short story, Cliffs of Gold, in Twelve/ Fifteen magazine.
He has sold dozens of stories to children's magazines, and has published thirty-five novels and nonfiction books for adults, young adults and middle readers.