Meet Marvin Redpost, the Master of Mayhem! Kidnapped at Birth?: Marvin Redpost has finally figured out why he doesn't look like anyone in his family. He's not really Marvin Redpost—he's Robert, the lost prince of Shampoon! Why Pick on Me?: Marvin is shunned by his classmates and teacher after he is unfairly fingered as a nose-picker by the class bully. Is He a Girl?: Will kissing his elbow really turn Marvin into a girl? Casey Happleton claims it's so. Alone in His Teacher’s House: Marvin's friends think he's the luckiest boy in the world when his teacher asks him to dog-sit for a week. But pretty soon it starts to look as if Marvin is not so lucky after all.... Class President: It's "hole day," and even Mrs. North and Principal McCabe are wearing their very worst clothes. It seemed like a fun idea that morning, but now the president of the United States is on his way! And there's no time to change! A Flying Birthday Cake: Marvin and Stuart get to sleep over in Nick Tuffle’s backyard for Nick’s birthday. Marvin he hears a noise in the night, and something glowing zooms over his head. The next day, a very strange new kid shows up at school…. Super Fast, Out of Control!: The word at school is that Marvin will be taking on Suicide Hill with his new mountain bike. But the truth is, he can barely climb on the seat! A Magic Crystal?: Casey Happleton shows Marvin the magic crystal she has just found and offers to give Marvin a few wishes. Is the crystal really magic? Or is it too good to be true?