On a July afternoon in 1972, two masked men waving guns abducted forty-nine-year-old Virginia Piper from the garden of her lakeside home in Orono, Minnesota. After her husband, a prominent investment banker, paid a $1 million ransom, an anonymous caller directed the FBI to a thickly wooded section of a northern Minnesota state park. There, two days after her nightmare began, Ginny Piper--chained to a tree, filthy and exhausted, but physically unharmed--awaited...