Scratch the Surface — Susan Conant

When mystery author Felicity Pride stumbles upon a gorgeous gray Chartreux snuggled up against a gentlemanly corpse (in her own vestibule!), she's determined to solve the crime--just like her own fictional sleuth would do. Naturally she wants to know who he was, who did it, who the cat belongs to, and what publicity value it all has. The answers could lie with Felicity's pet-hating neighbor. Or with a highbrow collector of every cat mystery ever written. Or maybe with Felicity's biggest rival, a bestselling recluse living in the shadows of a nom de mystere. With burly, kilt-wearing detective Dave Valentine on her side, Felicity intends to identify both victim and killer--and sort out a case more puzzling than any she's ever plotted on paper...