"Okay, that's all for today's class, don't forget to do your homework. After Professor Broad announced the end of class, students began to pack up their things and leave the classroom.

"Professor Broad?" Albert deliberately stayed behind.

"Is there anything wrong, Mr. Anderson?" asked Professor Broad, looking up at Albert.

"That's right, I have a question. Albert immediately said, "Later in The Dark Forces: A Guide to Self-Defense, I read about Grindillo and remembered a plant you mentioned in the first lesson called the Guardian Tree. ”

Professor Broder looked at the gifted student with interest and asked with a smile, "You want to know if the Dharma Protector Tree can protect people from Grindy Lowe's attack?"

"Yes. Albert nodded.

"Theoretically...... It should be ok. Professor Broad raised his hand and pointed outside, telling Albert that someone was waiting for him outside.

"Theoretically?" Albert turned around in confusion and waved at the three Fred, who signaled that he didn't have to wait.

"Yes, in theory, I'm glad you realized that. Professor Broder said happily, "The Guardian Tree is a magical Yamanashi tree that will protect those who touch its trunk from the attacks of dark creatures. Of course, this is a record in the data, and since it can be recorded in the "Thousand Magical Herbs and Mushrooms", it shows that the Dharma Protector Tree is indeed effective, but it ...... This kind of thing is only theoretical. ”

Albert was silent, quietly listening to the other man continue.

Professor Broad looked out the window at the scenery and soaked in his own memories: "When I was very young, a friend once gave me an amulet that I claimed to be able to ward off werewolves, dementors, and necromancers. ”

"Does it really work?" Albert asked curiously.

"Yes, it works. Professor Broad nodded, "Of course, the effect is not as exaggerated as he suggests, but the amulet does make some dark creatures retreat." It really allows you to travel without unnecessary distractions. ”

"The amulet is made of Yamanashi trees?" Albert had already thought of what Professor Broad meant by these words.

"Yes, later the effect of the amulet gradually weakened because of the relationship of time. Professor Broad nodded.

Albert was silent, thinking about the truth of Professor Broad's words, the amulet made of Yamanashi trees was really so effective?

"After the amulet failed, I asked him for another one, only to be refused, and he told me that just soaking the amulet in mashed garlic would keep the vampire away. Professor Broad looked at Albert, who was stunned, shook his head, and said, "I followed his suggestion and soaked the amulet in the mashed garlic for a day. Later, the amulet was full of garlic. ”

"Are vampires really afraid of garlic and crosses?" Albert couldn't help but ask.

"Scared, it might be more appropriate to say nasty, vampires hate the smell of garlic. Professor Broad continued, "It's a thrill for a vampire, like someone driving you away from behind with something you hate. ”

"What about the cross?" Albert asked again.

"Muggles at that time, using the branches of the Dharma Protector Tree to make crosses, it did work, but it had very little effect. Professor Broad shook his head, "Of course, the more important thing about the cross is to give courage in the faith. ”

"So, vampires aren't afraid of crosses?"

"Yes, they are not afraid. "Later, I saw amulets selling amulets in the market, and I bought one for two Galleons, also made of wood from the Dharma Tree. ”

"It didn't work?" Albert thought he might have guessed it.

"No, I can't say it doesn't work, it's ......," Professor Blod grinned, "Basically, it doesn't work. ”

"Why?"

"That's a good question, why?" Professor Broder asked rhetorically, "why do you think so?"

"I don't know. Albert shook his head and said, "The amulet is made from the wood of the Guardian Tree?"

"Do you know about alchemy?" Professor Broad abruptly diverted the subject.

"Yes. Without thinking, Albert said, "An ancient chemical rudiment?"

"Chemistry, sorry, kid, I didn't understand what you're talking about?" Professor Broad was also stunned, he really didn't understand that Albert actually spat out the word chemistry, in the wizard's worldview, there is no such thing as chemistry.

"I mean the Muggle worldview, you know, I'm from a Muggle family, and it's in Muggle books that alchemy is the rudiments of ancient chemistry. Albert explained casually.

"I see. However, alchemy in the wizarding world is actually a kind of magic. Professor Broad continued: "This is an esoteric subject, and alchemy involves a lot of things, but unfortunately it is not very popular in England, and only Africa and Egypt are open to separate subjects. ”

"You think the amulet is an alchemical item. Albert immediately connected the two things.

"Yes. Professor Broad was glad that Albert had figured this out, and he continued: "An amulet made by an alchemist is a true amulet, and can best preserve the effect of the Guardian Tree. At the very least, when you wear the amulet over a swamp or a lake, Grindillo won't come and attack you. ”

"However, I need to warn you, don't buy amulets on the market, those are made by some scammers, although the Protector Tree is not very common, but I think a talisman made of the wood of the Protector Tree is not worth two Galleons. ”

"Because it's not been processed by an alchemist?" Albert asked rhetorically.

"That's right. Professor Broad looked at Albert and said, "I guess you want to use the Protector Tree as an amulet?"

"Yes, I want to make a talisman for my sister, her birthday is approaching. Albert didn't hide it, but avoided Professor Broad's gaze, he felt that the old man might be preoccupied, and although he didn't feel like he was being seen through, he should be a little more vigilant.

As he spoke, Albert pulled out a cross he had made a while ago from his pocket.

It's really simple, it's wood intertwined into a cross, the ordinary kind, the product of his practice of cutting spells.

"This is indeed a talisman made of wood from the Dharma Tree. Professor Broad took the cross, looked it up and down, and joked, "Still, it's so inferior that I dare say it won't sell for 2 Galleons." ”

Albert knew that Professor Broad was just making a simple joke and didn't care at all.

"If you want to make an amulet, I suggest you go and read books related to alchemy. Professor Broder suddenly suggested, "If it were someone else, I probably wouldn't recommend him to go to school, after all, it's at least the difficulty of the third-year elective." That shouldn't bother you, though. ”

"Any recommendations?" Albert asked.

"Simple Alchemy, this is a primer, I prefer to call it fool's alchemy. Professor Broder took out his pocket watch and looked at the time and said, "Alright, I have a class later, and if you still want to talk about Defense Against the Dark Arts, I suggest you come to me at the Defense Against the Dark Arts office on the weekend." ”