Kelp has a plan, and John Dortmunder knows that means trouble. His friend Kelp is a jinx, and his schemes, no matter how well intentioned, tend to spiral quickly out of control. But this one, Kelp swears, is airtight. He read it in a book. In county lock-up for a traffic charge, Kelp came across a library of trashy novels by an author named Richard Stark. The hero is a thief named Parker whose plans, unlike Kelp and Dortmunder's, always work out. In one, Parker orchestrates a kidnapping so brilliant that, Kelp thinks,...