Multiple choice What phrase is used to activate the Marauder's Map? Avadacadabra Wingardium leviosa Expecto Patronus I solemnly swear I am up to no good. Reveal answer Fill a bubble to check yourself D Correct answer Explanation To reveal the map, one must tap it with a wand and say, 'I solemnly swear I am up to no good.' To clear it, one says, 'Mischief managed.'