Murder, She Meowed: A Mystery by Rita Mae Brown

The annual steeplechase races are the high point in the social calendar of the horse-mad Virginians of cozy Crozet. But when one of the jockeys is found murdered in the main barn, Mary Minor “Harry” Haristeen finds herself in a race of her own—to trap the killer. Luckily for her, she has an experienced ally: her sage tiger cat, Mrs. Murphy. Utilizing her feline genius to plumb the depths of human depravity, Mrs. Murphy finds herself on a trail that leads to the shocking truth behind the murder.