School of Fear: The Final Exam by Gitty Daneshvari

Check out the laugh-inducing, phobia-reducing final book in theSchool of Fear trilogy! Is school out forever at the School of Fear? A nosy reporter is planning a scandalous exposé on eccentric Mrs. Wellington and her unorthodox teaching methods, and the news is sure to put an end to the school. Madeleine, Theo, Lulu, Garrison, and the new student Hyacinth must convince the reporter that their teacher and the school are perfectly normal. But how can they accomplish this when Mrs. Wellington is just so... odd? With the fate of their beloved school in their hands, the children now share a new fear--failure.