Everything you need to understand or teach A Piece of Mind by Phil Cummings.
Matt wants to be part of the group so he allows his friends Chunk and Fraser to talk him into doing things he really does not want to do, such as putting his hand in a dead cat's mouth, teasing an elderly neighbor's dog, and skateboarding down Devil's Hill. Hovering behind the moon in a spaceship, a group of Cartharians are waiting and looking for a new planet to inhabit now that theirs...