Albert tapped the photograph lightly with his wand. "Inferi, your old adversaries. I'm not sure if You-Know-Who has the time to mobilize a large number of Inferi to lay siege to Hogwarts, but I trust you are all capable of dealing with this group of dark creatures with ease."
"Dementors—again, old adversaries." Albert pinned another photograph onto the blackboard. "How many of you have mastered the Patronus Charm? Raise your hands and let me see."
Swish, swish, swish—a large number of hands shot up, much to Albert's gratification.
Chapter 1342