Luna answered in a low voice. No wonder she had been vaguely aware of someone peeping beside her.

"Ha, Albus, it seems that Hogwarts needs to add some more teaching content to Defense Against the Dark Arts next year."

Looking at the two little witches who were whispering, Grindelwald grinned.

"Miss Granger, illusion magic was once an extremely popular magic. Many bad wizards relied on this skill to obtain living supplies in the non-magical world. Of course, there were also many unlucky ones who were caught after failure.

"

"But, I didn't see the corresponding record in the textbook..."

"Of course, after all, this is not a glorious magic skill, but it is still quite difficult."

Grindelwald shrugged noncommittally and replied pointedly.

"Besides, with the implementation of the Secrecy Law, the practicality of this magic has plummeted. After all, most people are unable to create a large-scale, multi-angle illusion like Miss Kaslana. At best, it can only be regarded as

A prank magic that scares people, and the method of dealing with it will naturally be gradually lost, just like most magic that gradually disappears."

Glancing at Elena and the increasingly curious expressions in the eyes of several little witches, Grindelwald smiled slightly.

"And I happen to know a little bit about the cracking method. If you want to learn it, I can teach you... But I have a small request, a request rather than an order. I hope you will temporarily review the assessment content of the sixth and seventh levels.

Keep it confidential, and I will give you a piece of standard information later to ensure the teaching effect of the subsequent assessment."

"Of course, if you are in trouble, you can also blame us and say that Professor Dumbledore asked for confidentiality."
Chapter completed!