At the Hotel Larry — Daniel Pinkwater

Larry the polar bear loves living at the Hotel Larry. He gets to spend time with his friends, and he has a great job as a lifeguard (although very few guests use the pool!). On his days off, Larry puts on his human disguise and goes out for blueberry pancakes with his best friend, Mildred. One day, after stuffing themselves with pancakes, Larry and Mildred decide to go to the zoo. And who should they find in the polar bear pen but Larry's brother, Roy! Of course, Larry invites Roy and his two friends, Bear Number One and Bear Number Three, to come to dinner. But how do you entertain four wild polar bears?