Lilian Jackson Braun 2-in-1 Edition, Volume 1: The Cat Who Blew the Whistle and The Cat Who Came to Breakfast
Phoenix Books brings together two of Braun's best mysteries in this first volume in the series of two-in-one editions, featuring:

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.