The thrilling, exhilarating adaptation of the second book in the bestselling series.

Who stalks the middle school’s deserted hallways by night? Who trashed the science classroom and knocked out Mr. Cornue, the janitor? The principal is looking for the culprint among the boarders... Uh-oh! There’s only one thing for Rémi, P.P. Cul-Vert, and Mathilde to do: find out the truth for themselves, even if it means confronting the basement, a prowler, and the disciplinary committee!
Ongoing series, 1 volume published.