Who says cats and dogs don't get along? A snobby cat and a good-natured dog team up--sort of--to solve the mystery of a missing classroom pet in this playful illustrated chapter book told in letters. Simon the cat and Baxter the dog have finally learned how to share their owner, Andy. It helps that Simon lives with Andy's mom and Baxter lives with Andy's dad. When a problem comes up, they simply exchange letters to sort it out...