HP in the name of Slytherin

In the Slytherin Chamber of Secrets, several young wizards were still unconscious. Catherine separated them according to the basement of Herbo Castle, and at the same time reinforced the defense of the already closed Slytherin Chamber of Secrets.

Catherine told Severus the approximate reason why she traveled thousands of years, the danger of Voldemort in the future, and the threat he had shown now.

Only then did Severus realize that Catherine's time travel was not a simple romantic "time travel", but that she was carrying such a heavy responsibility.

He actually vaguely felt some danger. From Tom's narration in the Room of Requirement to Senior Lucius and Barty Jr., he learned that Hogwarts was not so casual for people to come in and out, but this Christmas Here, these people who shouldn't be in Hogwarts come out to make their presence felt, which is wrong in itself.

It's just that Catherine didn't tell him before, so he didn't ask any more questions. He just tried hard to read books and learn magic, hoping to help Catherine when she was in need.

Thanks to him having been practicing during this period, otherwise Rozier and Avery suddenly attacked him. The first time, Halpo didn't even react. Severus managed to avoid it on his own. The second time, Halpo didn't even react. Only then did he swallow the two people's attacks, and quickly tied them up after Severus hit them with a stunner.

It's a pity that he has been running hard, and it seems that Catherine is still very far away from him.

Severus was not discouraged and just asked Catherine: "Can I also learn this curse?"

"Of course," Catherine said, "I'm telling you this, on the one hand, to make you prepared. Voldemort may also attack you next. On the other hand, I have some ideas about the restraint spell of the magic field. I hope you can come and practice it with me.”

Even though Severus already had a contract with Catherine, one of the highest standards, Catherine was still a little worried about Voldemort's various little moves.

This descendant of hers was so smart that when she figured out how to possess Agatha without using the mark, he actually also figured out similar magic. This time, he achieved the possession of Agatha entirely through other magic. Catherine knew nothing about this magic.

Severus understood the importance of restraining the curse and nodded seriously: "What do you need me to do?"

"How are you doing with your Occlumency practice?" Catherine asked.

Severus inevitably thought of his mistake last time, pursed his lips and said, "There is no problem this time."

After that mistake, Severus worked hard to study Occlumency.

"The restraint spell I thought of was to modify Occlumency. The magic field is actually a kind of emotional invasion magic. To some extent, it is a little similar to Legilimency, but it penetrates through various areas of the human body and partially seizes the soul. The essence of the curse, if the Occlumency can be expanded to wrap the entire human body and form a barrier, maybe it can prevent the intrusion of the magic field to a certain extent?

Of course, it is still in the theoretical stage. I only calculated it through magic principles and it is indeed feasible. During the specific operation, I also need to refer to the magic reserves of the caster and user. "

Severus listened and thought. After a moment, he tentatively said: "This magic barrier you mentioned, I am using a magic now. Can you take a look?"

Catherine was stunned, nodded and said: "Okay, you can use it."

Severus coughed lightly, took out his wand with the tips of his ears slightly red, closed his eyes and took a deep breath before chanting a spell that was both familiar and unfamiliar.

It was an Occlumency incantation, and it had some changes in tone, as if it suddenly made strange noises while reciting the incantation.

There wasn't much to tell from Severus's appearance, but he nodded to Catherine, signaling that he was ready.

Catherine said: "I will try to release the magic field on you now——"

She raised her hand. The magic field didn't actually require spells or gestures. She just wanted to let Severus know that she was casting a spell.

White magic field tentacles poked out. Just as Catherine couldn't see Severus's barrier, Severus couldn't see Catherine's magic field either.

Until the two collided with each other, Severus saw a small white snake that looked like a miniature version of Haierbo, and Catherine also saw a barrier of light around Severus.

White means there is no emotion. Catherine was just testing and didn't use much magic. Even so, her magic field was still isolated by Severus' barrier.

"Severus!" Catherine said in surprise, "This magic does work! You are really a genius!"

Catherine had just proved the existence of this magic through theoretical calculations, and Severus had already put it into practice! Even the curse has been studied and understood.

With the theoretical framework and Severus' ready-made spell, this magic can be formed quickly. It doesn't take months or even weeks at all. Catherine can trace the origin in a few days!

Severus blushed after being praised by Catherine. This time he was really embarrassed and said quickly: "It's just a coincidence. I originally thought I used the wrong magic."

How could he tell Catherine that because of his previous failure in Occlumency, he went to the library to study the entire principle of Occlumency. One day while reciting a spell and practicing, he was suddenly hit hard on the back by that daredevil Sirius. Two notes broke the sound...that's how this magic came about.

Damn it, he must take this secret into the coffin!

Catherine only thought that Severus was shy. This little follower of hers was too introverted, unlike Halpo who liked to scream for praise for everything he did and was always so silent.

Catherine respected their two personalities, but patted Severus on the shoulder very seriously and said sincerely: "It's really amazing, Severus. If it weren't for your spell, I might have to spend time deducing the corresponding spell." Spell, it could take a few weeks or even months.”

It is impossible for Catherine to use a contract to protect others for such a long time. Of course, even with this magic, if Voldemort really wants to control him, he may still succeed in controlling him in the end, because he is really the leading existence in the field of black magic in the world. No one knows how strong the magic is and how many methods it has.

However, if the protective barrier is continuously operated and other tracking magic is added, once someone's protective barrier is successfully invaded by the magic field, as long as he and the supervisor know, Voldemort will invade the Order of the Phoenix and the people around Catherine through the magic field, and then attack their plan. It would be impossible to succeed.

"Severus, this magic will have names for both of us, you are so awesome!"

Severus:! ! ! !