HP: After binding to the strongest wizard development system

Rowena was the earliest of the four to die, earlier than the others, including Rowena himself, had imagined. And because of some regrets and resentments before his death, Rowena's soul was incomplete and did not become a ghost as they planned.

There was no way, for the safety of Rowena's soul, the three of them worked together to place Rowena's soul in the oil painting that Till gave them - it was the common obsession of the four of them and their deep emotions.

In the oil painting, Rowena's soul does not need to be harmed. Apart from being bound to freedom, it is almost indistinguishable from a ghost.

In order to send Rowena's soul into the oil painting, the three Godrics inevitably had to pay a price. This was the direct reason why they finally entered the oil painting together and none of their souls became ghosts.

This is part of the record in the book, and the other, larger part describes a secret method that can only be completed by Till.

If something unexpected happens to Hogwarts one day, and this ancient castle is violated by internal or external forces, Till will serve as a medium to reawaken the power of the four founders from the depths of the castle. That will be the castle's most powerful barrier when danger comes.

All "children" who have a sense of belonging to Hogwarts and are recognized by Hogwarts will be protected by Hogwarts. As for those who attempt to harm teachers and students and cause damage to the castle, they will naturally be the targets of huge magical attacks.

The reason why this secret method can only be completed by Till is actually related to Till's soul.

Because of the time circle, Till's soul traveled to Godric's era, and the time circle was set up by Salazar himself. With Salazar's aura, Till used the time circle to travel back and forth. , naturally created a bond with Salazar.

Salazar founded Hogwarts with three friends. With him around, Till became bound to the four founders, and in turn had an inseparable relationship with the castle.

At first, Salazar and the others just wanted to keep their respective powers, thinking that they might be able to find a way to make the castle defend itself. However, they tried it a thousand years ago and almost got themselves hurt. It was better to find a medium. Convenient and safe.

Thiel was their carefully selected media, but he was chosen under no choice. Only Thiel could become a qualified media, and only Thiel was a media they could trust.

Till was not angry about becoming an arcane medium, because she knew that this was a way to protect Hogwarts. And just like what Salazar wrote at the end of the Secret Code:

"You will be in Hogwarts when the secret is activated."

"We are protecting not only the castle, but you as well."

If there is a day when the secret method is really needed, Till doesn't mind being the key. No Hogwarts student with a conscience would be willing to watch something happen to the castle.

For Till, Godric and the others had only not seen each other for a few years, but for Godric and the others, they had not seen Tiel for hundreds of years. The four of them hardly moved their eyes away from Till. I drove past it until my soul became more transparent, and then I reluctantly returned to the oil painting.

The soul enters the oil painting and cannot come out in a short time. They need to rely on hibernation to restore the soul, otherwise there is a danger of the soul dissipating at any time.

Till had already talked a lot with them. Although he was reluctant to leave, he still moved away obediently until he was alone in the room again, then he sighed and sat down on the chair.

The girl with long silver-white hair lowered her head slightly, narrowed her eyes, and stared blankly at a certain point on her legs, making it difficult to see what she was thinking.

According to what was said in the conversation, although Godric and the others' souls were feebly inhabiting the oil painting, they would occasionally take turns to leave the oil painting and walk around the castle to appreciate the changes in the castle over the past hundred years.

But it's really just occasional. They can't appear for a long time. Every time they appear, they consume a lot of magic power. That is to say, with Tier's magic power as an assist today, Godric and the others can only have four souls appear at the same time.

'We tried to find the magical artifacts that would sustain us, but they would disappear if we were out for too long. We took turns going there many times without success. Helga's regretful voice echoed in Till's mind. Something flashed through Till's mind, but she failed to capture it.

Now that it was quiet, Till had time to recall what this flash of inspiration was.

Is there something with huge magical power that can serve as a container for four souls to appear at the same time? Till crossed his arms, and the light in his mind became clearer and clearer, and finally Till successfully captured it all at once.

"Philosopher's Stone!" Till made a fist with his right hand and hit the palm of his left hand, his whole body became a little excited.

Yes, the inside of the Magic Stone contains huge fluctuations in magic power. If Tyr's magic power is compared to an endless river, then the magic power in the Magic Stone must be an unfathomable ocean!

If Till could find the Philosopher's Stone for Godric and the others, at least they would be able to appear in the castle freely without having to go back to the oil painting to hibernate because of the risk of disappearing after staying outside for too long.

But if the Philosopher's Stone was really so easy to obtain, Mr. Flamel would not be the only one to have one. The Flamel couple would also need to rely on the Philosopher's Stone to brew the elixir of life, so the piece of Thiel in Mr. Flamel's hand would not be needed. Think about it.

Is it really necessary to rely on what Mr. Flamel said, to refine a magic stone at the end of the study to test the learning results? ——Tiel just laughed it off at the time, but now he can only smile bitterly.

"I always thought that the existence of a piece of the Philosopher's Stone was enough. It's not enough." Till stood up and stretched out for his stiff self. "Now it seems that if you learn it, it will come in handy."

Thiel wrote down an extremely important item in his study plan - to refine a magic stone.

【Ding! Short-term task twenty-four: Refining a magic stone. Mission completion reward: The system is upgraded to level 20. 】The emotionless mechanical sound sounded, which was completely different from the mechanical sound that the system usually communicated with Teal, but Teal had long been accustomed to it.

The mechanical sound for issuing tasks seems to be controlled by the main system. Even if the system reaches level 100, the task prompt sound is rigid and waveless.

Till was originally worried that his alchemy might not be enough to successfully refine a magic stone, but now he was completely surprised by the generous reward for completing the mission: [Upgrade to level 20? Will we directly upgrade to level 12 when the time comes? 】

【Yes! A whole 12 levels! 】The system is more surprising than Tier. After all, the benefits of upgrading are real to the system. 【However, the host should not be too happy. The difficulty of the task and the reward are generally corresponding. I am afraid that the short-term task twenty-four will come to you. Said it was a bit difficult. 】

For some difficulty, Thiel felt that these four words were beautified by the system.

She has already created many alchemy works, but the gold content of the magic stone can be imagined, and it is only more vivid that it is "very difficult".