The Cat Who Blew the Whistle: Jim Qwilleran and his feline sleuths investigate the disappearance of a wealthy railroad buff—and alleged multimillion-dollar embezzler—a case that becomes complicated by red herrings, a tragic train wreck, and murder in a railroad tavern.
The Cat Who Came to Breakfast: Qwilleran and his Siamese cats, Koko and Yum Yum, journey to a peaceful island paradise that is rapidly being developed into a luxurious resort—where a series of mysterious "accidents" has been occurring.