As soon as the door of the Potions Office closed, Snape spun around abruptly, pointing his wand at the empty air behind him.
A figure materialized from thin air, looking at him with a smile.
"Well, if it isn't Mr. Ruler, famous overnight," Snape said, putting away his wand with heavy sarcasm. "Engaging in such stalker behavior to follow a professor into his office—aren't you afraid your little fan club's illusions will shatter once they find out?"
Chapter 421