Employing a ghostwriter on a work of fiction is never more dubious than when the putative author really is a writer. Brett Halliday (creator of Mike Shayne), Leslie Charteris (creator of the Saint), and Ernest Tidyman (creator of Shaft) all turned to ghosts to carry on the exploits of their famous characters. The Ellery Queen team employed other writers to turn out paperbacks that were very different from the genuine Queen novels. One case of posthumous ghosting, "Chains of Command" (1999)--credited on the cover to William Caunitz, who died in 1996, but written almost entirely by Christopher Newman--precipitated a class-action suit by readers who believed they had been defrauded.