THE PAST HITS HARD IN DAVID MASSENGILL'S LATEST NOVEL A murdered woman's body is found sprawled across a car seat in Seattle, a tree branch resting on top of her corpse. She clutches a cell phone displaying a website featuring horror fiction stories posted by the public. The story of the day is about Spindly Arms, a killer with a face in the shape of a crescent moon and tree branches for arms. Forty-four-year-old John Larsen is...