The secret of the Malfoy-chest

Draco Malfoy was finally free. Only his father was convicted at the trial. Draco was allowed to return to Hogwarts to finish his studies, but the court assigned an Auror apprentice to him to search his room weekly for illegal items and to check what magic he had performed with his wand. However, he didn't expect that his old enemy, Hermione Granger, would be entrusted with this task... There is nothing to do, he has to hide from her that certain chest, that keeps his secrets and which the goody two-shoes Granger unfortunately has a lot to do with...