An unexceptional young reader with a familiar theme: the rewards of loyalty to home. Selene, a cat, doesn't realize that she should be grateful when her owner takes her along on a move to a houseboat--she yearns to return to her suburban home. A seagull befriends her and gives her a ride back, but the longed-for destination proves disappointing, the house now being occupied by a fierce dog. After a miserable night, Selene goes home a second time, acquiring a friend--another female cat--on her way back to the houseboat. A gracefully told but unexciting story--with such minor lapses as the second cat's coat being in dismal shape because she's a stray (cats try instinctively to keep themselves clean) and Seline's remarkably easy rediscovery of her new home, which she left by air. McCully's drawings are adequate, but the attractive jacket is a reminder that her best work is in color. An acceptable additional purchase where animal stories are in demand.