They followed Myrtle and walked quickly towards the girls' bathroom. The only good thing was that the library and the bathroom were on the same floor, so they didn't have to go around. When they were approaching the bathroom, Ron suddenly asked, "Myrtle, how did you get to know Malfoy? I heard that you have a habit of peeping into the prefects' bathroom."

Myrtle whimpered, covered her face and walked through the wall.

Harry and Hermione stared at Ron, who shrugged, "I'm really curious."

"You better shut up." Hermione said. They came to the door of the bathroom where Myrtle usually stayed. Harry listened attentively for a few seconds and said in a low voice, "I can't hear anything... She must have been cursed."

Harry and Ron turned to look at Hermione. Hermione decisively took out a small beaded bag, rummaged around for a while and took out three retractable ears from it.

"Great, I hope there's no anti-disturbance spell. I'll try... and sure enough there isn't." Harry stuffed one end of the flesh-colored retractable ear into his ear and threw the other end toward the dirty door, and it automatically slipped in through the crack of the door.

They listened carefully.

A pinched, artificial voice reached their ears: "Do you still need to consider it? Or should I ask the master to give orders directly to your father? Draco, we are in the same group, we just need your help a little..."

Hermione looked up in horror, "It's that woman, Umbridge! What does she want to do?"

Draco Malfoy's low and hoarse voice came out, "I, I can't... sign that contract... No, that contract will, will kill people."

"As long as you don't try to violate it. Malfoy, do you want to betray your master?"

"I, no..." Malfoy's voice lowered, "Your chances of success are too low, I can't gamble my life. I need to think about it for a while, I'll get back to you tomorrow or the day after tomorrow, I have to ask my father" "

Lucius is one of us, you don't think you can stay out of it."

"...I don't think so."

"There's no time to waste, dear Draco. It's just right that you don't agree. I'll report it to my superiors right away. You can imagine what will happen to your father when the time comes." Umbridge said in a sweet voice, sounding like an innocent little girl, but Harry and the other two couldn't help but shudder when they thought of her big face and the threat she made at this moment.

"What should we do?" Hermione turned her head and looked at them.

"What did she mean by the contract that would kill people?" Harry asked calmly.

"I guess it might be the 'unbreakable oath'. Once signed, it cannot be changed. The only consequence of violating it is death." Hermione said softly, "But that requires a third person to be present." Sure

enough, the voice of the third person appeared. It sounded like the voice of a young man: "Sign it, Draco, why don't you tell me a secret, Dumbledore, the protector of the Muggles, will not live long, the master is just hiding from the limelight... He attaches great importance to this task and asked us to complete it at all costs. You don't want to fail because of you in the end."

There was silence inside.

"What should we do?" Hermione asked again.

"We must stop them no matter what," Harry said. He jumped up and pointed his wand at the door.

"Wait," Hermione said. "We don't know what their plan is yet. It's better to let them think it's an accident." She thought for a moment, "I have an idea."

"Hermione,"

Hermione had already rushed out. She pretended to be panicked and wandered back and forth at the door. "Huh? Why is the door locked?" She said to herself, then pulled out her wand. "Alaho." The spell that blocked the sound at the door was broken, and the bathroom door opened a crack.

"We all risked our lives to come here. Why should you..." The man's impatient voice stopped abruptly.

"Hello, is anyone in there? I'm in a hurry to go to the bathroom. Who set the spell at the door? Is it to stop Myrtle?" Hermione said slowly.

The few seconds were too long, and it seemed that they would never end. Harry and Ron's palms were sweating. They stared at Hermione closely, fearing that a green wand would be handed out from inside. Unable to wait for the other party to make a decision, Harry shouted quickly: "Hermione, come back quickly, we'll wait for you outside!"

"Yeah, I want to exchange Chocolate Frog cards with Dean." Ron shouted.

Hermione hesitated and said: "Oh, wait, there's a problem... It seems that someone is inside..."

"Do you need help?" Harry shouted at the top of his voice.

Finally, the door opened, and Draco Malfoy said palely: "It's you, Hermione Granger."

"Malfoy?" Hermione said in a surprised voice, "Why are you in the girls' bathroom? I'm going to tell the professor."

"Don't mind your own business! This place is abandoned," Malfoy whispered, "What are you doing here? Where are those two followers Potter and Weasley?"

"To the bathroom, of course!" Hermione said in a haughty voice, "They are outside, unlike you."

"Get out of the way, don't block the way."

The voices of the conversation kept getting closer, and Hermione said in an unyielding voice, "Wait, I will definitely tell the professor, let him deduct points from you and put you in detention! I will also tell Filch! Let all the girls stare at you, you dirty, despicable..."

Harry secretly praised Hermione in his heart, so that the people inside would be more or less cautious, and it would be difficult to find Malfoy openly again.

Malfoy's light yellow hair and pointed chin gradually became clear in the darkness. His face was sweaty and looked particularly pale, as if he had just had a serious illness. Behind him followed the furious Hermione.

"Draco Malfoy?" Harry said in a tone of pretended surprise.

Malfoy glared at them fiercely and turned away without saying a word.

Hermione stopped angrily until Malfoy's figure disappeared. She then asked calmly in a low voice: "How was it? Great." Ron gave a thumbs up, "Where's the person inside?" Hermione shook her head slightly, indicating that she didn't see it.

"Maybe he's hiding." Harry mouthed, and his wand was always pointed at the dark door of the abandoned girls' bathroom.

Hermione didn't go in just now. If she was hit by the Imperius Curse, it would be bad. She was not sure she could break free from the spell.

Harry tapped Ron and himself with his wand, and under the effect of the Disillusionment Curse, the two immediately blended into the dim environment. Hermione followed suit, and they slowly retreated and hid in the darkness. After waiting quietly for more than ten minutes, they were all a little anxious, and then there was a faint movement from inside.

A silver light bloomed in the darkness. It seemed to be a cat, but it looked quite blurry. The patronus circled around and turned into silver dots and disappeared.

Then a short and fat woman appeared. She looked around and left in a hurry.

But none of Harry and the other two said anything, as they knew there was another person inside. After a while, a young wizard came out and strode away.

The three of them breathed a sigh of relief when his back disappeared.

"That man's name is Avery, and we've seen him before at the Ministry of Magic," said Hermione.

They walked back in silence, looking very worried. What happened today was beyond their expectations. "They obviously have a conspiracy, it's best to tell the professor," said Hermione, and Harry and Ron nodded. Suddenly, the door of the broom closet on the second floor opened silently, and three pairs of hands stretched out from the darkness, trying to drag Harry and the other two in.

They reacted almost instantly. Harry opened the human armor charm, and the barrier that was close to his body swelled into a ball in the blink of an eye, squeezing away the messy hands. Two dark thorns flew out of Hermione's beaded bag and entangled in the darkness; Ron took a step back, silently chanting a spell, and white flames quickly condensed from the tip of his wand.

"It's us, Harry," said a very familiar voice.

Harry's heart was pounding, looking at the figure in the dark, and said in disbelief: "Angelina?"

"Come in quickly." Angelina said anxiously.

The door of the broom closet closed behind them.