Originally, he used this item to go back a day and make up for the mana consumed, but what happened a few hundred meters away caused the mana riot to affect Dumbledore, and he had to drain all his mana to ensure that the "regression" went smoothly.

Li Huan picked up the "time turner" on the ground and thought thoughtfully.

According to the Ministry of Magic's current documentation, wizards were forbidden to travel over time in 1899. Because in that year, the famous traveler Elois Mitubao was trapped in 1402 for five days. Shortly after recovering her, she died in St. Mungo's Hospital for Magic and Magic, her body irreparably damaged by five centuries of severe damage on the way back.

Li Huan thought that if he learned this magic, if he went back to a hundred years ago, and came back, would he be able to defeat Yuan Zhen?

"Old Deng, do you know the magic in this prop?" He asked.

Dumbledore gasped and said, "Of course, this is a prop I made. ”

Li Huan said with interest: "Then you teach me this magic, I haven't seen it in the ** area of the school." ”

Dumbledore became cautious: "Students with good academic performance are eligible to enter the ** area, this magic is too dangerous, so it is impossible to put it there." In fact, the only place in the wizarding world that still has a backtracking of magic is the old archives of the Ministry of Magic. ”

Li Huan was surprised: "There is still a magic like a Horcrux in the ** area, isn't this dangerous?" ”

"It's different, Horcrux...... In fact, it is knowledge, and although it is evil, our professors can teach students and set them on the right path. Dumbledore was a little disappointed, he thought of Voldemort, "Backtracking is a trap, it's not evil, but it's too difficult, and the adventurous nature makes many adult wizards die on time travel, let alone students." ”

"That's right." Li Huan nodded, "No matter, you teach me first, I'm not afraid of time." ”

Dumbledore glanced at Li Huan with deep meaning, he had long suspected that this guy was an immortal species that had lived from ancient times to the present, and he could not even say anything that was not afraid of time.

"Hey, I mean, you don't want to play here, that guy is nearby." Tomie said angrily, she stretched out her hand and pointed to the restored castle in the distance, and there were Tomie rushing to the castle one after another.

"Well, we have to figure out a way, why wasn't Yuanzhen killed?" Li Huan said while thinking.

"Hmph, what's the reason for this, he must have lied to me, what two months, this is a fake time." Tomie gritted his teeth and said hatefully.

"By the way, it must be so, so what do we do? After today, the monk will be out of trouble. Li Huan looked at Tomie, "Do you have any backup plans?" ”

Tomie shook his head silently, and another Tomie next to him spoke: "This is his only flaw, and I don't know how to deal with him after today." ”

It's really interesting, isn't all Tomoe all Tomie, and even changed people to speak.

Dumbledore said with a firm face, "Don't give up at any time, we still have a chance." ”

A dozen Tomie glanced at the old man and ignored the chicken soup at all.

Li Huan thought about it, and it seemed that he could only use the backtracking magic himself.

"Let's go back first, there's no point in dragging it here, fortunately, at this point in time, Ali and you haven't been exposed."

The group returned to the manor and hid in the basement, because at this point in time, they were packing their things.

As soon as Tomie came back, he thought that his past self was setting off with Li Huan and the others, so he asked, "Won't that explosion still happen a day later?" Will it be them in the past, or will we be killed? ”

Dumbledore said, "It's a paradox of time, so the first requirement of backtracking magic is not to let the two of them meet. When the backtracking is over, the two selves must be not far apart so that they can become one and continue to spend the time ahead. ”

"That is, if we can't think of a way in a day, we have to go to the scene of the explosion and die?" Tomie said with an ugly face.

"I'm afraid so." Dumbledore was embarrassed.

"It's not a joke, I'm not going there." Tomie shouted.

"Wait...... Don't worry, there won't necessarily be an explosion. Li Huan hurriedly stopped Tomie from attacking, "I can modify the spell on Yuanzhen's back and let Voldemort contact it smoothly." ”

Tomie's face turned slightly pale, and he sighed: "That still can't stop him from getting out of trouble, and the same move won't work for him again." ”

"There's no way around it, at least we know that he's been 'immortal' for more than two months." Li Huan's eyes suddenly lit up, "By the way, you can go back and continue to go undercover and ask how long his invincible state lasts, no matter how long he can last, the weakness of his blood volume after the end will always exist." ”

Tomie nodded and said, "It makes sense, if he even deceived me about this, then I lost completely, and I won't have any complaints." ”

The next day, Dumbledore taught Li Huan the magic of backtracking in the basement, which was a lot of magic involving the occult, and Li Huan did not have a foundation in this area, so he could not learn it in seconds.

"It's strange, haven't you been watching the ** area for a long time? Why don't you know anything about the occult? Dumbledore wondered.

Li Huan said with a strange face: "Well, it may be that the talent is limited." ”

What should he say?

The occult requires shamans to build a whole set of baseless theories in their minds and to be convinced.

If someone who has never been in contact with the arena comes, maybe they will be able to accept this set of theories, but Li Huan is from the arena, and he clearly knows what the world outside the world is like, how can he believe this set of nonsense.

But he can't do so much now, he can only learn the backtracking magic now.

After a long night of studying and making up for it, Dumbledore's eyelids drooped and he couldn't do it. Li Huan is full of energy, and the dragon's energy is always full of vigor.

In the morning, Li Huan performed the retrospective magic for the first time, he stretched out his hand and recited the mysterious spell in his mouth, which was literally meaningless, just a series of syllables, which was characteristic of ancient magic.

A large amount of magic energy surged out of his body, but it did not escape into the surrounding air, and he didn't know where it went.

In Li Huan's perception, he paid attention to a lot of magic in this magic, and finally vaguely saw a door.

It wasn't a physical door, nor was it a concrete image in the mind.

It's just that I feel like I have a door in front of me, and if I open it, I can go to the past time. If you want to go back in time, you need to continue to infuse the magic.