The Big Blueberry Barf-Off!

At Rotten School, Bernie Bridges self-appointed mastermind of the fourth-grade class finds himself in a messier rivalry than usual when a blueberry eating contest spirals into a full-blown barf-off. The book delivers the kind of silly, gross-out humor that defines the series, as Bernie schemes to out-eat and out-gross his opponent to prove his supremacy. The story follows the rapid-fire pranks and escalating chaos that result when a simple snack becomes a contest of wills. It is the first book in the Rotten School series.