Seeing Filch holding that page and turning to leave with Mrs. Norris, Fred and George hurriedly called out to him. "Filch, you're just leaving like that?"
"You're all out of trouble..." Filch sounded somewhat helpless. "Can I catch you again now? Would you fall for it?"
Fred shook his head very simply. "Good point! Of course not!"
George sounded rather gratified. "Filch, you really do understand us!"
Filch glanced at the page again. "Then why not let me go?"
"Since you understand us so well..." Fred continued, "actually, we understand you very well too..."
"What you're thinking right now..." George looked at the page. "You're definitely thinking about collecting the materials on it, aren't you?"
"What are you planning to do?" Filch's eyes grew wary, and he hurriedly stuffed the page into his robes.
Fred smiled. "Ever thought about speeding things up?"
George added, "For example... getting the materials together earlier, and then starting to bask in the moonlight?"
"Oh? You have a way?" Vizet became curious. "The hardest of those materials to collect should be the uncontaminated dew."
"Vizet, take a look at this!" Fred smiled and took a paper packet from his pocket.
Vizet opened the packet. Inside were several Canary Creams.
Canary Cream was a prank food developed by Fred and George. In appearance and taste, it was very much like an Eggnog Biscuit, and its effect was to turn someone into a canary for about one minute.
When these biscuits were sold publicly, the price was seven Silver Sickles each, but recently Fred and George had adjusted the price, lowering it from seven Silver Sickles each to four Silver Sickles each.
The entire practice process for becoming an Animagus involved three magical subjects: Charms, Potions, and Ritual Magic. Some of the principles used in Canary Cream