That night, Harry was lying on the bed toss and turned, listening to his roommates' snoring, and he couldn't sleep.

He was still thinking about what happened during the day, whether it was a big victory over Slytherin or a happy sight of his archenemy Draco Malfoy being scolded by his father.

But he suddenly felt lonely, and he also wanted to taste the feeling of being scolded by his parents.

Everyone is looking forward to the arrival of the summer vacation, and he is the only one who resists. He even plans to stay and stay with Hagrid, or go to the Burrow.

"Harry ~ Potter!"

A slight call sounded, Harry was no stranger to the sound, he hurriedly put on his glasses and looked at the thin figure standing at the door.

He has a pair of huge brown eyes and a nose that looks like a large tomato.

"Duo, Duobi, it's really you!"

Harry quickly looked around and they were sleeping soundly, and even Ron's pet fat gray rat was lying comfortably on its owner's pillow.

He gently lifted the quilt, climbed out of the bed, looked at the wand at the head of the bed, hesitated for a moment, and copied it into his hand.

"Fluorescent flashes."

Harry took Dobby to the common room, where there was only a faint light, and he picked a chair with a cushioned seat.

"Please sit down, Dobi, you have something to say to me, right?"

When he got closer, he realized that Dobi had changed his clothes and didn't change them. He was still the same old pillowcase, but he didn't know where the elf found it, so he added two sleeves and something that looked like trouser legs.

"It's wrong for you to change into new clothes! Dobi, you, you..." He pointed at Dobi, unable to speak. From Ron, he learned that house elf cannot wear normal clothes, there is only one possibility

"Yes, Mr. Porter, Dobby, Dobby is free!" The elf's big eyes were filled with tears and screamed with joy.

"How could that be? I mean, congratulations, Dobby." Harry said, "but are you still following Lucius Malfoy during the day?"

"Dobi didn't know either. It might be because of the failure of the little master during the day that he was in a bad mood. When he went back tonight, he scolded Dobi fiercely...Dobi was used to it, but unexpectedly, he actually wanted to drive Dobi away!"

Harry opened his mouth and wanted to say something, but Dobby continued happily: "I never thought... this is what Dobby dreamed of..."

Dobby let go of his fingers, and a gorgeous button lay quietly on his slender palm.

"Master, no, Lucius Malfoy gave Dobby a button, which he pulled from his body... He angrily asked Dobby to leave Malfoy Manor forever."

"So you're free and don't belong to anyone?" Harry said.

"Yes, Dobby is now a free spirit." Dobby blinked his big eyes, "Thank you all this, the great Harry Potter, who defeated Draco Malfoy on the court!"

Harry felt that things were impermanent. The fact that he defeated Slytherin could have such a huge impact on Dobby.

"I didn't expect that, of course, I felt very honored." Harry said modestly: "By the way, Dobby, you shouldn't be bound by your identity now, right? I have many questions to ask you."

"You speak out, Dobie does his best."

"That's right, is the secret room incident Lucius Malfoy's conspiracy?" Harry asked the doubts that the three of them discussed during the day.

"Yes, he brought the Dark Devil's relics: a cursed diary to Hogwarts, with the help of Ginny Weasley."

"Wait! Ginny?"

“…That’s right, at Lihen Bookstore.”

A light of inspiration woke Harry up, and he said in a sure tone: "He had a fight with Mr. Weasley. I remember that he finally picked up Ginny's textbook and laughed at her fiercely! Lucius must have secretly stuffed the diary inside, right?"

"Totally correct, Mr. Porter," Dobby said, bent over.

"Then you stopped me from returning to school and attacked me on the court because of that relic, was it that opened the secret room?"

Dobby lowered her head and whispered, "You are right. Dobby overheard Malfoy's words, Mr. Porter, you don't know how dark the days of the house-elves were during the reign of the Black Devils. Now it's much better than in the past..."

It was difficult for Harry to be the case, what kind of life did the house elves at that time live?

He comforted, "You are so happy now, aren't you?" But Harry suddenly thought of something and almost jumped up. He said tremblingly, "Now, is that diary still in Ginny's hands?"

"Will she be in danger?"

Dobby whispered: "No, the diary was in the hands of three people, at first Miss Weasley, but later, I don't know how he ran to Draco Malfoy, and finally, it fell into the hands of the same great Mr. Felix Hepp."

"Professor Happ?" Porter was stunned.

"Yes, but Mr. Happ realized the evil of the diary. He destroyed it, completely destroyed it! Just before Dobby..."

Harry felt that his head was not enough. Tonight's explosive news made him at a loss, and he had a confused expression on his face.

...

The next morning.

"You mean, the source of all this is Lucius Malfoy? He hid the diary in Ginny's textbook. Ginny was controlled to open the secret room and released the basil monster to cause the petrification of Lady Loris and Clivie! Then the diary came to Malfoy again. Oh my God, he really suffered! But the most outrageous thing is that the diary is now destroyed by Professor Happ!"

Ron never said so many things in one breath. He poured several large mouthfuls of pumpkin juice "ton ton" on.

"That's it." Harry nodded, and his heart moved, saying that he accidentally ran into Draco when he was saving Justin. "He looked confused, but I didn't have time to think about it at the time. There were too many things that happened afterwards, and I completely left this suspicion behind."

"Oh my God, Professor Happ didn't even bother at all!" Ron said in admiration or in admiration.

Hermione fell into memories, adding: "Do you remember the time I was in the hospital? Professor Hepp warned me that the danger was over and told us not to pursue it anymore. I think he got the diary at that time and maybe he had ruined it."

"And," the little witch turned her fingers: "Professor Happ must have told Dumbledore, and Dumbledore might have told your parents, Ron." At this point, she said a little depressedly: "Although, he didn't tell us."

"Cool~ It turns out that adults have done so many things behind our backs," said Ron.

"What are the plans for Dobby now?" Hermione asked.

"I don't know yet, I guess, he might go to visit a friend?" Harry said uncertainly.

Ron hurriedly finished breakfast and left anxiously.

"Where are you going, Ron?"

"I'm going to ask Ginny, and I suddenly thought about what impact the diary would have on her."

"You're right!"

...

They learned more about Ginny's stuttering description.

"You left your diary in the abandoned bathroom?" Harry asked in surprise, staring into Ginny's eyes.

Ginny lowered her head shyly, with a bright blush on her face: "Yes, Fred and George talked about many scary examples at that time, and I realized that it was inappropriate."

"It's totally matched! Malfoy followed us, but we urgently moved the potion away. He lost his way, but found the diary." Harry said.

He couldn't help but burst into a cold sweat. The blurry shadow he saw at that time should be the diary that Ginny had thrown away, but because he found Malfoy, he didn't have time to read it carefully.

If he picked up the diary, controlled him, and let him be caught on the way to open the secret room, he would be indecisive. You know, he was misunderstood by everyone because of the snake accent.

"Ginny, are you feeling any discomfort?" Ron asked.

Ginny shook her head, "I followed Luna's advice and went to the school hospital to see it. There was no other problem except that she was weak. Mrs. Pomfrey drank two bottles of medicine and recovered quickly."

"By the way, she also said that a boy also had similar symptoms..."

The three of them looked at each other and said in unison: "Draco Malfoy!"

They spent half a Sunday and barely pieced together the complete truth

From Lucius' revenge to Ginny being controlled to open the secret room and causing two attacks, she threw away the diary after discovering the abnormality, but was picked up by Draco Malfoy, Draco was caught by Harry when opening the secret room and saved Justin. Then they went deep into the secret room and killed the basilisk. Then the diary fell into Professor Happ's hands and was completely destroyed, and the secret room incident came to an end.

"It's strange that Professor Hayp has a strong presence in the whole thing."

"This shows that he has really found out the whole truth."

Harry, Ron and Hermione sat lazily by the black lake, feeling a refreshing feeling of solving the puzzles that had lingered in their hearts for a long time.

They also put down a huge rock in their hearts and prepared for the exam with all their might.
Chapter completed!