• A Cat on the Case
• An Incantation of Cats
• A Spell of Murder
• Stages of Grey
• Kittens Can Kill: A Pru Marlowe Pet Noir
• Grey Expectations
• Grey Matters
• Cats Can't Shoot: A Pru Marlowe Pet Noir #2 (Pru Marlowe Pet Mysteries)
• Cattery Row
• World Enough
• Probable Claws
• Shades of Grey
• Mew is for Murder
• Code Grey
• When Bunnies Go Bad
• Dogs Don't Lie
• Parrots Prove Deadly
• Cross My Path
• As Dark As My Fur
• Grey Dawn
• Into the Grey
• 3 Panthers Play for Keeps
• True Grey
• Grey Howl
• Fear on Four Paws
• The Ninth Life