Hogwarts: Don’t panic, Old Deng, I won’t be the Dark Lord

"What a bloody mess..." Sisley didn't even look up after coming out of the fireplace, and walked straight out of the bar.

"Huh? A lonely little wizard?" One of the guests at the table muttered when Sisley walked out of the bar and his companions at the same table.

"Yes, lonely wizards? Are you going?" An old wizard at the bar said quietly.

"Uh uh uh... no, no, no, of course not, another glass of whiskey." The wizard who was still sober hurriedly said.

After walking out of the bar, Sisley found a secluded corner. The fog dissipated, and when he opened his eyes again, he was already back in the ward.

"How's it going? Have you found out whose family Dobby belongs to?" Harry looked at Sisley, who had his hair loose again, and looked at Sisley in confusion for a moment, then asked again.

"The Malfoys," Sisley said with a shrug.

"Sure enough, Malfoy sent Dobby to kill Harry!" Ron said solemnly.

"But, didn't that elf say it was here to save me? And there is indeed an heir of Slytherin active this school year. Maybe it is really afraid that something will happen to me in school..." Harry muttered softly. .

"Then how did he know that the heir of Slytherin would appear this year? In order to save you, he must know where the crisis is coming from, unless the heir of Slytherin is here..." Ron stiffened mid-sentence.

"Malfoy? Draco Malfoy!" Harry added.

"We have to find a professor and tell them our reasoning... Sisley?"

Sisley raised his eyebrows and said: "Okay, wait until tomorrow, but I advise you not to have too much hope. After all, this is just a conjecture. You can't really call that Dobby out to confront him. As long as If the Malfoy family doesn't admit it, it's useless."

"That's what we have to say, and we have to look for clues ourselves, using that Polyjuice Potion!" Harry said firmly.

"Pretend to be Draco's follower and then ask directly?" Sisley asked.

"It's Malfoy... Although you may not be able to find out, Crabbe and Goyle are both Malfoy's roommates. If you search in his dormitory, you will always find clues," Ron said.

"Okay, okay, Malfoy...how is the potion going?" Sisley asked Hermione.

"About half a month." Hermione thought for a while and said.

"It's too long... half a month is enough for Malfoy to bloodbath Hogwarts." Harry said irritably, rubbing his head.

"No, according to the current frequency, there is almost one victim every two weeks. If we are quick enough, we should be able to catch up." Sisley comforted.

"Two weeks...but what if he's completely random?" Ron asked worriedly.

"I'll leave it to fate," Sisley said, spreading his hands.

"I'm going to Slytherin's common room now to find out!" Harry sat on the bed alone and sulked for a while, then stood up suddenly and said.

"Here, the invisibility cloak." Hermione handed over a piece of mercury-like silk on the small table beside her.

"Are you guys together?" Harry asked after showing his head.

"...Take the invisibility cloak a little wider." Sisley said and got in.

"Don't leave me!" Ron said hurriedly.

Team invitation 3/4...

"Okay, okay." Hermione rolled her eyes vaguely and picked up a piece of silk and got in.

Team formation successful 4/4...

"Slytherin's lounge is the same as Gryffindor's. You need a password to enter. You pull up the invisibility cloak a little wider. I'll look in old Thorne's textbook to see if there are any clues about the Slytherin password. "After Sisley finished speaking, it was not Old Thorne's books that he opened, but Voldemort's diary.

"Senior, which college are you from?" Sisley wrote above.

[Slytherin, what’s wrong? 】

"Do you remember the passwords for the Slytherin common room? Are they rotating or fixed?" Sisley asked.

[It’s considered a rotation, but when I was in school, the passwords only changed back and forth a few times. 】

[Roughly speaking, they are words of commendation such as greatness, glory, glory, honor, shrewdness, etc. If there is not one here, it should be almost the same if you look for words of praise that are in line with the spirit of Slytherin. 】

Sisley nodded, thanked Voldemort in the diary, closed the diary, and sighed quietly.

"What's wrong Sisley? Didn't you find it?" Harry asked as he walked forward.

"Slytherin's passwords are not fixed. I hope they are still using these passwords now." Sisley said.

Soon, the four of them walked to the Slytherin lounge in the basement.

"Glory...glory...greatness...ambition..."

"Shrewd...pure blood............."

Until Sisley's mouth went dry as he spoke, the Slytherin door did not move at all.

"Water." Hermione handed the jug that looked like a hip flask to Sisley.

"Thank you." Sisley raised his head and drank up the water and returned it to Hermione with some embarrassment.

"Maybe I should use a Sealing Retracting Charm next time," Hermione said after putting the lid into her pocket.

"Uh huh huh..." The four of them were silent for a while. Sisley now wanted to go back in time and give himself a big sinus for joining this play house just because he was bored, so he could join in the fun without any time.

Harry and the others don't know the truth about the heir of Slytherin, don't you know it yourself?

"Wait...Slytherin...snake?" Sisley suddenly wanted to grab Hua Dian, looked at the silver snake carving engraved on the Slytherin door, and tentatively approached.

"Hiss!" [Open the door! 】

In an instant, the originally tight door revealed gaps revealing green light.

"Harry, Invisibility Cloak." Sisley looked at the opened door and said excitedly towards Harry.

Harry looked at the opened door. Although he felt excited, he quickly put up the invisibility cloak and covered all four of them.

"Sisley? Are you a Parselmouth?" Ron said with a shocked look on his face.

"Who knows, maybe the Thorne family married a Slytherin descendant before." Sisley said indifferently.

"Huh? What Parseltongue?"

"Huh? Is this called Parseltongue?"

Sisley and Ron looked at the other two in confusion.

Ron said with a confused look on his face: "Hermione said it is Parseltongue, I understand it very well, but Harry, you said it is called Parseltongue...what do you mean?"

Harry closed his eyes in embarrassment, opened them again and took a slight breath. The next moment, Harry made a hissing sound.