[Comprehensive HP] In the name of darkness

In the headmaster's office, Dumbledore looked at the person in front of him, "Sev, I think we need Veritaserum."

Peter Pedirou.The former hero, Dumbledore's eyes were cold. At this time, the mouse could no longer change, but it did not prevent his annoying begging for mercy from constantly disturbing their ears.

"Do you want to call Molly and Arthur over?" Professor McGonagall looked at the man under control. There was still a Dark Mark on his split left arm, which he couldn't deny.

"Let them come over, but don't bring Ginny. After the matter here is over, let them go and comfort Ron." Dumbledore's voice changed from cold to tired. As soon as this man came out, he said many things I don't know.Especially, Sirius, what to do?

That night, Dumbledore's headmaster's room was very lively, but the Slytherin common room was even more lively.

Harry poked his head into the common room, and was spotted by the sharp-eyed and dark-faced friends inside. "It's really not my fault—"

Harry walked into the common room with his hands raised, and the Slytherins suddenly couldn't hold back and laughed.Harry let out a long breath, "I scared you to death."

"Why don't you go back to the tower?" Urquhart walked over to embrace Harry, "You don't want to watch us train anymore, hmph."

"I know your tricks, it doesn't matter if I don't see it." Harry looked at Urquhart, who was two heads taller than him, provocatively, "Professor McGonagall and I applied, and we still live in Slytherin. I'm used to living here."

"Then, what about Draco?" Blaise's voice sounded, and Harry froze for a moment, looking at Draco with a slightly weird expression.

"I remember, I was in a double dormitory, it seems that I have a roommate." Harry knew what was going on as soon as he turned his head, walked to Draco and blinked: "Roommate, would you like me to live back? "

Draco pursed his lips tightly, "That's your dormitory, do you need my consent?"

"Yeah." Harry nodded, smiling cutely. "Ahem, Harry, they are going to prepare for the chief challenge." Prefect Earl walked over and said to Harry.Harry nodded: "I'm going to find the professor." After speaking, Harry moved closer to Draco: "Come on, it's easier for the chief to do things."

The hot air blew into Draco's ears, and a layer of red was visible to the naked eye. Harry smiled: "So cute."

After Harry disappeared, Blaise looked at the tense Draco and shook his head. Draco was almost there, so he was molested.

He said he was looking for Snape, but Harry turned a corner and came to a portrait of a feathered snake. He didn't know if it was Merlin's blessing, Dumbledore and the others would be very busy tonight.Harry took a deep breath and hissed in Parseltongue.

【Dear Mr. Slytherin, please open the secret door for the snake whisperer. 】After Harry finished speaking, he saw the slightly faded Feathered Serpent twisting its body in the painting, 【Snake Whisperer, why are you here? 】

[In order to protect the safety of Slytherin] Harry didn't know that there were other problems besides the password, so he told the truth.

[Remember your answer. 】The feathered snake walked into the painting, and a passage appeared in the painting.Harry looked around and climbed up.Following the faint light on the feathered snake, Harry saw a finely patterned wooden door with a small snake on the doorknob.

[Open] Harry saw the doorknob twist, and there was a study behind the door.The fire in the fireplace was still burning, and there was a faint smell of wine in the air. The three walls of the study were covered with books, covered with thick carpets, and there was a large desk. The reading chair was very comfortable.

[Visitor, please sit down. ] There was a sound in front of the chair, and Harry was frightened to be honest, because only the chair in front of him could sit in the whole study. [Forgive me for not being able to pull out the chair for you. 】

【It doesn't matter. 】Harry stepped forward, the back of the chair was higher than him, slowly opened it, Harry saw a small picture frame on the desk, why is it a picture frame, because the canvas is black.

[Prick a drop of blood] Parseltongue couldn't hear any emotion, but Harry felt that the voice was a bit dull.

[You may have misunderstood, I am not a descendant of Slytherin. 】Harry was a little skeptical, there seemed to be something wrong with the mechanism.

[Prick a drop of blood] The voice repeated again, this time obviously a little impatient.Harry frowned slightly, pricked his fingertips, and dripped blood on the table.

The original wooden table began to change and turned into a stone platform. There was a contract in the middle of the stone platform. At this time, the black picture frame also began to fade, and it showed a portrait of a young man wearing an ancient magic robe. She was very magnificent, her red eyes were like blood, her facial features were exquisite, and her bearing was extraordinary.

[It's really not my blood. 】The man in the portrait sighed, although his voice was a little sluggish, his expression didn't change much. [Since you can wake up Shitai, it proves that your strength is still possible. 】

Harry could clearly feel that Slytherin was out of breath just now. [Sign the contract, you are the temporary owner of Slytherin, before you leave Hogwarts, the Slytherin owner will obey your orders.But you remember, as long as you hurt a Slytherin student, the contract will imprison your soul in the castle. ] After Slytherin finished speaking, his figure began to fade a bit.

[What if you have already graduated? ] Harry remembered that Voldemort was also a student of Slytherin.Slytherin chuckled [Unexpectedly, you are still greedy, everything that left Hogwarts is not counted. 】

[Everyone has greed, the difference is only in the degree.Only because my enemies are Slytherins. 】Harry looked at Slytherin's limbs that had begun to fade, 【Are you ready to leave?What if someone else comes in the future? 】

[I will be in charge of the future, I am tired. ] After Slytherin finished speaking, he glared at Harry, 【You must protect Slytherin, the suffering in the wizarding world will never stop. 】

Harry shrugged, [You are right. 】Look at the terms of the contract. Slytherin owns a quarter of the castle and the Forbidden Forest. After Harry signs the contract, the portraits and statues will obey Harry’s orders. After the defensive magic circle is activated, the magic circle will feed back to the guardian Or, this is an advantage, but also a restriction, as long as Harry hurts the Slytherin students, he will be punished.

Quill pen, no ink, Harry wrote his name at the end of the contract, the bright red handwriting represented the source of his ink, there was a burn on Harry's wrist, a small snake coiled on it, silver, very nice, Like a little tattoo.

[I will give you a helper. ] Slytherin's stature is already very thin, 【Before the contract is completed, it will choose someone to take my place here. 】Harry stared, he doubted that this person would be him [-]%, no wonder he just said that someone would take care of him.

[Pretty smart] Slytherin smiled slightly, the portrait completely disappeared, the frame returned to black, but a small dark blue snake crawled out of the frame, the snake raised its head to find its place, and circled around Harry's wrist , opened his mouth and bit his own tail, turning into a bracelet.

Harry looked at the folded stone platform, and then at the bracelet on his wrist, 【Hey, what's your use? 】

Silence, Harry changed the phrase [what can you help me? 】

silence.Harry gave up struggling, and it didn't hurt that he was tricked by the Slytherin ancestors.Unbeknownst to Harry, a part of the Hogwarts castle was undergoing changes as he walked out. The first thing that changed was the Slytherin common room. The magic table disappeared and appeared from the middle of the floor. A layer of light quickly swept across all the dormitories and walls, and Slytherin watched this change in surprise, even ignoring that at the same time all the portraits fell silent for a moment, and began to sort out their own paintings.

In the Forbidden Forest, the centaur elders and the unicorn elders looked at the starry sky, and the fluttering elves flew out of the plants, and then went back, everything was silent.

"What happened just now?" Earl stood up with his waist supported. His academy chief challenge ended like this?

"I think someone will explain this matter, but this person is not here now." Dalton's psychedelic voice sounded, and the fifth grade looked at their new chief and suddenly felt that this chief who was intensive in arithmetic and divination would take them all To become—a centaur?

Harry came out of the portrait, the feathered serpent was completely new, and nodded at him.Harry nodded, and heard discussions inside the common room before he reached the common room.Harry swiped to hide between the pillars, ready to listen again, but the next second he saw Snape floating over like a ghost, as if, what he just said was to find the professor, uh, who lives in Slytherin Are there any other professors?

"Where's Harry?" Snape's words completely exposed Harry, and everyone in the common room looked at each other.Urquhart consciously said, "He just said he was looking for you."

When Harry heard it, his back teeth were cold: "I'm here, I went to your office just now."

"Really?" Snape looked at the people in the common room. "Everyone, go back to sleep. Don't make any noise."

"I, too, live here." Harry looked at Snape, who was about to reach out to lift him, and rushed behind Urquhart in an instant, "Professor McGonagall allowed it."

Any action tonight?Harry blinked, dodging from behind Urquhart to behind Draco.

Snape gritted his teeth, "Go back to sleep, no one is allowed to come out."

"Yes, Dean." Most of the first-year freshmen were frightened. Where is the legendary short-snake king?

Snape glanced at Slytherin, turned around and strode away.Harry turned his eyes to look at the group of snakes surrounding him, and said with a smile, "Go to sleep first, we will talk about something tomorrow."

"You will disappear early tomorrow morning, and we will only be able to find you at the Gryffindor dining table." Draco murmured, and the first graders stood behind him.

"It's not that I didn't say it, it's that you can't keep it secret." Harry shrugged, "How many of you have passed Occlumency?"

"Relax and go to sleep." Harry pushed the few behind, and then showed a moving picture of Sadako to the seniors who were trying to use Dementia.

"Merlin!"

Harry turned around and blinked, "No exception."