(From the publisher):
When Buster defeats the Brain in a math contest, he is chosen for the school mathathon. Crushed, the Brain says he's decided to become a comedian and declares Buster the new "brain." Can Arthur and his friends convince the Brain that he's still as smart as ever?
Original title: Arthur and the No-Brainer
Genre: Fiction→ Children & Young Adult→ Early Readers/beginning Chapter Books