Mouse Pet is the third tale in the exciting new picture book series “ Happy the Pocket Mouse.” When Happy declares he wants a pet— to pat and feed and take for walks— his friend John says that it’ s too much responsibility, that a pet needs lots of care and special attention. Not a mouse to give up easily, Happy insists that his pet will be no more trouble than Mrs. Farrell’ s canary. But when Happy’ s choice of pet turns out to have long furry legs, hooves and horns, John explains that you can’ t keep that kind of animal in the city. Happy insists that they can if they just hide it under a blanket. Offering a compromise, John suggests a “ teddy-pet,” to which, after some reflection, Happy agrees. After bringing his new pet home and settling in happily for the night, Happy suddenly declares that his pet requires a pet of her own. What sort of pet? John asks. Is this the beginning of an unending story?