Auzou Books for my first investigations volume 6 the secret passage

Investigation at the media library with Enzo and Max, the apprentice detectives! Wassim, the new pupil in the class, sends Enzo mysterious messages to decipher. The investigation takes Enzo and his dog Max to the media library, where they discover a secret passage! Like the hero, discover the clues as the story unfolds and solve the enigma...