30 books • 6 series
Book #1: Bird, Bath, and Beyond
Book #2: Dog Dish of Doom
Book #1: The Question of the Missing Head
Book #2: The Question of the Unfamiliar Husband
Book #3: Question of the Felonious Friend
Book #5: The Question of the Dead Mistress
Book #1: The Night of the Living Dead
Book #2: An Uninvited Ghost
Book #3: Old Haunts
Book #4: Chance of a Ghost
Book #5: The Thrill of the Haunt
Book #1: Written Off
Book #2: Edited Out