The Cat Who Saw Red — Lilian Jackson Braun

Something is amiss at Maus Haus. Not just the mystery of an unsolved "suicide" which hangs over the old mansion, but something ominous in the present-day residence. When Qwilleran moves in to work on his new gastronomical assignment, strange things begin to happen. First it's a scream in the night, then a vanishing houseboy. But when his old girl friend disappears, something has to be done. Qwilleran, Koko, and Yum Yum set out to solve the mystery--and find a murderer!

Qwilleran--a prize-winning reporter with a nose for crime. Koko--a Siamese cat with extraordinary talents and a flair for mystery. Yum Yum--a lovable Siamese adored by her two male companions. The most unlikely, most unusual, most delightful team in detective fiction!