The Cat Who Went Underground — Lilian Jackson Braun

Jim Qwilleran packs up his old kit bag and his two Siamese cats, Koko and Yum Yum, for a sun-and-fun summer at his log cabin in Moose County. Their vacation starts off ominously with the disappearance of a handyman hired to patch up Qwilleran's cabin. But the felines really start throwing catf its when they come across a dead body or two... A serial killer may be right under Koko's nose, and now this ingenious Siamese must dig deeper to clear poor Qwilleran of suspicion--and dig up the buried motive for a catastrophic crime.

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!