Summary

Chapter 4 is titled “Revenge of the Fleas.” The opening panel reads, “Meanwhile,” and pictures Petey and Lil' Petey walking. Lil' Petey is trying to tell knock-knock jokes again, saying this one is really funny. Petey finally accepts the prompt. The punch line is “A sidewalk pooped on your head” (85). Lil' Petey laughs so hard he falls down. Petey says he is not going to carry Lil' Petey, but winds up carrying him. Lil' Petey says he has another joke. Petey gives up and says, “Who's there?" Lil' Petey says “A big robot brontosaurus” (87), which prompts Petey to turn around and see the robot. He begins to run though Lil' Petey says he has not yet said, “a big robot brontosaurus who?” (88).

Sarah is riding on the brontosaurus and interviews Piggy, who says he is the leader of...