What does a collector do when he runs out of room for his collection? That's the dilemma of Harry Hoyle who lives alone (with his cat Max in a 72-room house filled with everything from hat racks to vanilla ice cream cones to weird stuffed animals. There is one room, though, that contains nothing but a 50-pound jumping bean, and despite the dangers of turning it loose Harry decides to do just that to make room for his new truckload of doorknobs. Max, the voice of sanity throughout (though he can only look ""as if to say"" what any sensible cat might be thinking), will have no part of it, and indeed before the bean is through all Harry's collections have been smashed by its undisciplined jumping.Does Harry despair? Not with 72 empty rooms to fill with new collections. Stuff and nonsense to be sure, but Van Horn's crafty narration and his expressive, rough cartoons will ease readers along with Harry from room to room, from page to page.