"I would never want to be in the same class with two brothers of Lucas Cott, " says Cricket Kaufman. "At least Mr. Herbertson didn't make a mistake by putting them both in the same classroom!"

Marius and Marcus aren't trying to be class clowns like their big brother, Lucas. But just tell that to their teachers! Whether Marius is hunting for mice in Mrs. Greenstein's room or Marcus is playing fifty-two pickup across the hall in Ms. Boscobel's, both twins have a way of turning their classes upside down. And when the boys trade places so they can figure out once and for all who has the better teacher, that spells double trouble!

Fans of the popular Class Clown books will give Johanna Hurwitz an A+ for her funniest portrait yet of the kids at Edison-Armstrong School.