Operation to Rescue the Sorcerer's Stone

The two hurried to the fourth floor to find Harry and Ron, but ended up seeing them on the third floor, looking dejected.

"Harry, Ron, what are you doing here?" they walked over.

Ron sighed, "Professor McGonagall caught us. She told us not to stay there."

"How did it go on your end?" Harry asked.

Muya and Hermione shook their heads.

"No, I have to go through the passage guarded by Fluffy tonight. I can't let Voldemort take the Sorcerer's Stone," Harry said firmly.

Hermione understood, "Harry, can your invisibility cloak cover four people?"

"Four people? It should be able to," Harry nodded.

"It's okay, I have another bottle of invisibility potion," Muya patted the dust off her skirt, which she had just picked up while squatting.

After agreeing on the time for their operation, they parted ways.

At night, after Shalian and the others were asleep, Muya put on clothes suitable for action, drank the invisibility potion, and left the common room.

Harry and the others should be on their way by now.

On the way to the fourth floor, Muya ran into Filch, who was patrolling with a lamp.

Muya cautiously went upstairs.

Upon reaching the fourth floor, Muya saw the door to the room was half-open because Harry and the others had already gone in. She rushed forward, but accidentally bumped into something.

"Mmph," Muya clutched her forehead.

"Is, is that Ya Mu?" It was Ron's voice.

"Mm," Muya responded softly.

The three of them pulled up the invisibility cloak.

"The invisibility potion will wear off in a while. Hermione, let me hold your hand," Muya said.

"Okay."

They entered the room. Fluffy was currently sleeping on the floor, with a self-playing harp next to it.

Fluffy was sleeping right at the entrance to the passage. Muya temporarily let go of a somewhat frightened Hermione and stepped forward to rub Fluffy's three heads.

"Hey, good dog Fluffy, can you go sleep over there?" Muya gave each head a piece of meat.

Although Fluffy was confused why he could only hear Muya's voice and not see her, he did as he was told.

Since they couldn't see the stairs, they jumped down, only to find a net of plants below.

However, they were now entangled by these plants. Muya was too lazy to struggle, and they loosened their grip after a short while. She was already on the ground. She guessed this must have been her Head of House's idea.

"What are these things!" Ron exclaimed.

Hermione had also gone down, "Stop moving for now, it's Devil's Snare."

"So what do we do?" Ron tried to dodge the vines, preventing them from wrapping around his neck.

"Has Ya Mu gone down? We can't see her," Harry panted, still tugging at a vine.

"I'm down here, Harry. Try to relax your body?"

Harry listened to Muya and stopped struggling with the vines. Sure enough, they left him alone after a while.

Harry sighed, It feels so good to have my feet on the ground.

Now only Ron was still above. He also heard Muya's words, but he couldn't relax at all.

"Right, you can use fire," Hermione said excitedly to Ron.

Hermione took out her wand and cast a spell. The vines that had entangled Ron began to loosen, and Ron finally broke free.

They wiped the sweat from their faces and continued forward.

Inside the passage, there were the sounds of their footsteps and water trickling down the walls.

Walking a bit further, they heard tinkling and rustling sounds.

"What's that sound ahead?" Ron asked.

"It sounds like wings flapping," Harry said.

They reached the end of the corridor and faced a brightly lit room with a high, arched ceiling.

Countless small birds, sparkling like jewels, flitted about the room with their wings flapping.

Opposite the room was a heavy wooden door.

Ron swallowed, "Will they attack us?"

"Possibly," Harry said. "They don't look fierce, but if they all rush us at once, I'm afraid... Never mind, I'll run over and try."

Harry took a deep breath, shielded his face with his arm, and quickly ran to the other side of the room.

"Phew, looks like there's no danger," Muya said.

They walked over as well. "The door's locked," Harry shook his head at them.

Muya touched her chin. "Ooh, this is a bit like an escape room. But this room is so empty... Wait, are those flying things keys!" she exclaimed, nearly jumping with excitement.

Harry looked around the room. "Oh, those are flying broomsticks. We have to ride them to catch the keys."

"But there must be hundreds of keys up there!"

Ron went to examine the lock closely. "We need to find an antique-looking key, maybe silver, shaped like a doorknob."

"I see it! It's flying slower than the other keys," Muya said.

Harry nodded, got on a broomstick, and flew up. He quickly located his target, but with so many keys flying around, he couldn't grab it.

Seeing this, Muya and the others also grabbed broomsticks to help Harry. Under their coordinated efforts, Harry managed to catch the correct key.

After they used it to open the door, the key flew back up, looking exhausted.

The second room appeared pitch black, but the moment they stepped inside, it became brightly lit.

At this moment, they stood beside a giant chessboard with a pile of enormous black chess pieces in front of them.

"It's Wizard's Chess. Looks like we have to play to get through," Ron said.

"How do we play?" Hermione asked.

"From what I can see, we have to act as the pieces."

In the end, Harry, Hermione, and Ron became the pieces. Since Muya was still invisible, she was tasked with acting opportunistically.

Harry took the place of the bishop, Hermione became the castle, and Ron was the knight.

Ron began directing the black pieces in battle. Harry and Hermione silently followed his commands. All three of them were very nervous; Muya could even see Harry's knees trembling.

Every time one of their pieces was captured, the white pieces acted ruthlessly and without mercy. Many black and white pieces had already fallen on the board.

Muya worried for them. Suddenly, Ron said that he had to sacrifice himself to win. She quickly took out her wand. Just as Ron stepped forward and was about to be struck by the White Queen's sword, she cast the Levitation Charm, making Ron float over. The horse he had been riding was knocked down.

"Whew, that was close, Muya. Thank you for saving me," Ron said excitedly, hugging Muya directly.

Hermione and Harry were also startled.

They passed through that room and pushed open the door to the next one.

A nauseating stench wafted out. It was a troll lying on the floor, with a large lump on its head, clearly having been hit hard by someone.