"The Chattering Chimp Caper" is the twelfth book in the Jennifer Gray Veterinarian Mystery Series. The other eleven books, "The Unlucky Collie Caper," "The Dog Named Elvis Caper," "The Deadly Dog-Bone Caper," "The Black Cat Caper," "The Telltale Turkey Caper," "The Precocious Parrot Caper," "The Mischievous Monkey Caper," "The Tenacious Terrier Caper," "The Potbellied Pig Caper," and "The Pink Rabbit Caper" are also available.