Roger Friday is an ace class clown - and Marsha Cessano is a joker's worst enemy. She has no sense of humor. If Marsha screams when she finds a dead snake in her locker, that's not Roger's problem… is it? But when things start disappearing from school, Roger knows it's no joke. And he needs a partner in crime-solving. No one is more surprised than Roger when the best man for the job turns out to be... Marsha?! Can Roger and Marsha stop fighting long enough to save their school?