After dropping that "thank you," Mr. Filch really left without looking back.
"Teacher Vizet!" Fred and George hooked their arms over Vizet's shoulders again. "Shall we find an Empty Classroom and talk in detail?"
"Talk in detail?" Vizet blinked. "About Mr. Filch's Ritual Magic?"
"Exactly!" Fred and George moved in perfect unison, stretching out their fingers to point at the corner in the distance. "There's an Empty Classroom just around the bend. Let's sit down there and take our time talking!"
Fred and George set up a lectern, then moved over two sets of desks and chairs, speaking with great solemnity.
"How did Luna put it before..." The two of them slapped their foreheads. "Right! Teacher Vizet, hurry up and start!"
Vizet smiled and shook his head lightly. "If I explain it to you here, you'll have to explain it to Neville and the others later. Is that all right?"
Fred bared his teeth in a grimace. "Vizet, learning from Professor McGonagall isn't a good habit!"
"That's right!" George nodded in agreement. "Who assigns homework before the lesson has even started?"
Vizet pointed at the door. "Why don't we wait until everyone's together tomorrow?"
"Talk now!" Fred and George were firm, and even thought of a method. "If there's really no choice, we'll just extract a bit of memory! Let them watch it themselves in the Pensieve! We'll explain on the side!"
"All right..." Vizet cleared his throat. "Fred, George, based on what you know about magical creatures, what differences do you think exist between magical creatures and Wizards?"
"Magical creatures are much stronger than Wizards?" Fred said. "Like Fire Dragons... it takes a whole group of dragon-taming Wizards working together to subdue a Fire Dragon."
"Now that you mention it..." George also thought of something. "Among all the different