It’s Halloween, and Ducobu is back for an adventure filled with laughter and mystery! Professor Latouche and Miss Rateau move into a house haunted by the ghost of Anatole, the biggest dunce in the history of Saint-Potache School. This mischievous ghost will drag Ducobu, Léonie, their parents, and Kitrish into a series of hilarious and unexpected adventures. But beware: on Halloween, anything can happen!