As a Squib, Mr. Filch could only come into contact with spells. As for deeper magical knowledge, he knew absolutely nothing.
Fred and George were different. The Animagus Notes left behind by Sirius Black and James had later come into Fred and George's possession.
The two of them could easily tell that the process Vizet was describing to Mr. Filch was based on the Animagus training method.
"Animagus, huh..." Fred rubbed his chin. "Not simple... not simple at all!"
"This isn't the original Animagus, is it?" George looked at Vizet. "Vizet, is this that thing you modified later... the Animagus's 'Second Form'?"
"That's right!" Vizet nodded. A notebook and pen flew out of his pocket, writing down the materials and usage he had just mentioned, as well as the next steps.
"Mr. Filch, after you carry this glass bottle with you, you'll need to go out every night to bathe in moonlight..."
"If you can't see the moonlight, choose a small, enclosed room instead. Light dried Moonpetal Flower and smoke-roast the Moonstone with it to replace bathing in moonlight."
"While bathing in moonlight, press your dominant hand against Mrs. Norris's heart, press your other hand against your own heart, and then recite this incantation..."
"Amado, Animo, Animato, Animiloqui... Pay attention to the rhythm..."
Mr. Filch listened very carefully. Following the rhythm Vizet had used just now, he recited the entire incantation. "A-ma-do... A-ni-mo... A-ni-ma-do... A-ni-mi-lo-qui..."
"That's right, just like that..." Vizet nodded in confirmation. "This incantation needs to be recited seven times, until a voice appears by your ear. That voice will also recite this incantation."
"Take the appearance of that voice as the turning point. The next time you bathe in moonlight, you'll only need to recite the incantation three times. After that comes the final step. You need