He looked disdainfully up the steep flight of stairs. Third story. That meant four whole flights of stairs. Cassius sighed and indicated that she should start the climb first. It might take him a few minutes longer. He half considered sitting down on the stairs and requesting that she just fetch the potion.
But he was a bigger man than that. He adjusted his jacket and started up the stairs after her. Each step a painful jab to the back of his brain. Merlin.
As he focused on each step, he didn't realize how close he was to the girl's flat and nearly ran into her as she was unlocking her door. With keys that rattled and shook. Cassius took out his wand and cast a quick alohamora that unlocked the door in seconds. "Put the keys away. Now." They rang so loudly in his ears.