No cozy is complete without a cat. Mysteries have talking cats, crime-solving cats, and in Sofie Kelly’s Magical Cats series, felines walk through doors and materialize in strange places. Sofie’s cats transported her series to the New York Times bestseller list. My Dead-End Job mysteries also have cats. Thumbs is a six-toed polydactyl cat who belongs to South Florida private eyes Helen Hawthorne and Phil Sagemont. Thumbs is a more earthbound feline, but he has practical magic. CATNAPPED!, my 13th Dead-End Job mystery, is set in the world of cat shows. A pedigreed Chartreux show cat has been kidnapped for half a million dollars. Helen and Phil, the husband and wife PI owners of Coronado Investigations, are waiting for the catnapper to call. During this tense time, Thumbs uses all his feline powers to comfort Helen Hawthorne: Cats are magical creatures, Helen thought, as she sipped her coffee on the couch in Phil’s apartment. Her own cat, Thumbs, was curled up next to her, purring. Cats can’t talk or walk through walls, though they seem to have those powers. But they are calming. Since nine o’clock this morning, I’ve downed four cups of coffee, waiting for the catnapper’s call. Phil’s…