Student scientist Wilmer Dooley and his friendsand enemiesare back with another hilarious mystery to solve in this zany, action-packed sequel to The Contagious Colors of Mumpley Middle School.

Wilmer Dooley cant wait to be a seventh grader. But first, he really cant wait for the 45th Annual State Science Fair and Consortium. It will be a blissful summer weekend spent hanging out with Ernie and impressing Roxie with his dazzling project on bacteria.

But Wilmers dreams come crashing down when he arrives at the dilapidated Sac Puces Palladium, Lodge, and Resort-Like Hotel. First, his old biology teacher, Mrs. Padgett, is a chaperoneand she absolutely despises Wilmer. Next he learns that the fairs final activity involves being stranded in the dark woods and trying not to get eaten by bears. And worst of all, his arch nemesis, Claudius, is thereand hes brought along his equally rotten cousin Vlad.

Wilmer quickly begins to suspect that the two are planning something horribly sinister. But as he grows more and more concerned, the other kids begin behaving more and more strangely...almost as if theyre being brainwashed. And when Wilmer discovers the diabolical scheme thats afoo...