Multiple choice general knowledge A spell that opens a passageway leading downward Alohomora Dissendium Ennervate Locomotor mortis Reveal answer Fill a bubble to check yourself B Correct answer Explanation Dissendium is the spell used to open secret passageways, specifically the one leading to Honeydukes cellar in Hogwarts. Alohomora unlocks doors, Ennervate revives, and Locomotor Mortis binds legs.