Harry couldn’t have said how long he sat still for, Snape alternating between dancing his wand in front of Harry’s face and removing a potion or balm from the satchel he had bought and instructing Harry to apply it, before he continued with the flicking, swishing, and jabbing of his wand, his lips moving constantly as he murmured under his breath, his eyes fixed on Harry’s throat. Finally, the wand was lowered to Snape’s side, and he swiped away the bead of sweat that had been growing on his forehead. He opened his mouth to speak, before changing his mind, and conjuring a mirror for Harry to take instead.