Where does the key to the deaths on Breakfast Island lie? Siamese cats Koko and Yum Yum, with a little help from Jim Qwilleran, are on the case in Lilian Jackso

Jim Qwilleran and his Siamese sleuths, Koko and Yum Yum, investigate the disappearance of a wealthy railroad buff in this mystery in the New York Times bestsell

In this charming Cat Who mystery, a misused mansion sets the stage for a strange caper for Jim Qwilleran and his cats Koko and Yum Yum. Qwill’s moved into the

willeran - a prize-winning reporter with a nose for crime. Koko - a Siamese cat with extraordinary talents and a flair for mystery. Yum Yum - a loveable Siamese

In this mystery in the bestselling Cat Who series, Jim Qwilleran takes a trip to Scotland and brings home a case that only his cats Koko and Yum Yum can solve..