“The Cat Who Blew the Whistle” is the 17th installment in Lilian Jackson Braun’s beloved “The Cat Who” mystery series. In this novel, journalist Jim Qwilleran and his perceptive Siamese cats, Koko and Yum Yum, delve into the disappearance of a wealthy railroad enthusiast. Their investigation uncovers a web of intrigue involving a historic steam locomotive, missing funds, and a murder at a local railroad tavern. As Qwilleran and his feline companions connect the dots, they challenge the police’s conclusions and work to uncover the truth.