With a few quick, practiced movements and some nonverbal incantations, she casts a Repelling Charm, a Privacy Charm, and a Muffliato over the area before eventually canceling the Imperius Curse. Just as my mother's eyes clear and she fumbles for her wand in terror, I pull the Invisibility Cloak off my head. Granger remains hidden underneath, as agreed, and presumably has both her eyes and wand trained on the back alley's entrance.