"But that is the nature of revenge. It escalates. It cannot be controlled. One hurt invites another, on and on until the original injury is all but forgotten in the chaos of what follows."John Connolly's originality and talent for storytelling have quickly made him one of today's preeminent thriller writers. Now, in "The Unquiet, " private detective Charlie Parker returns to untangle a horrifying story of betrayal, unclean desires, and murder -- a story of never-ending evil whose conclusion is not yet written.