Being at Hogwarts, something's not right with this system.

After Hermione used a spell to knock out Cerberus, Lin Yu and Hermione closed the door and began searching the room.

Finally, they found a trapdoor under the three-headed dog, whose role was to guard it.

Lin Yu took out his wand and used the Levitation Charm to move the Cerberus's massive body aside. The two opened the trapdoor and jumped down.

That's right, the trapdoor is like a well, with no ladder at the bottom, and it seems very deep.

Fortunately, both of them knew how to fly on swords, and Lin Yu reached out and grabbed Hermione's waist. The two of them floated down, not at all disheveled or panicked, but rather with a feeling of being in a fairyland.

"Fluorescent light," Lin Yu picked up his wand and used an illumination charm to light up the surroundings.

Finally, they landed on the ground, where there was a patch of dark green plant, like vines.

"This is a devil's web," Hermione said, clearly knowledgeable. She had seen this plant in books and pointed out its weakness: "They're afraid of fire. It's a pity we don't have any matches."

Lin Yu chuckled and reminded her, "Hermione, don't forget you're a witch."

(This part was hilarious when I read it in the novel.)

However, they didn't need matches or fire, because Lin Yu's illumination spell was so dazzling that the demon net, which disliked light, began to automatically avoid them.

So the two finally stepped onto the ground and found a passage, which was also the only corridor.

The corridor went down a slope, and after walking for a while, Lin Yu and the others finally arrived at a brightly lit room.

"Splashing".

A noise came from above.

Lin Yu and Hermione looked up and saw a large group of tiny creatures flapping their wings and flying above them. Their wings were colorful, like jewels.

"Wait, those look like keys?" Hermione looked closely and realized that they weren't birds at all, but rather a bunch of keys.

Lin Yu pointed forward and said, "Looks like this is the second or third level? Who cares. Right now, if we want to open that door, we have to find and grab the right key."

There was a door blocking the way in front of the room.

Hermione, refusing to believe it, walked up to the door and tried to open it with the door-opening charm again, only to find that it failed this time.

"Someone has cast another spell," Hermione explained to Lin Yu.

Lin Yu shrugged. That's why those keys were set up, isn't it?

Hermione returned to Lin Yu, raised her right hand to indicate the sword in her hand, and said, "Perhaps we can shoot them all down?"

She was eager to try it out because she hadn't yet fully unleashed the power of the Nine Forms of Cloud Abyss.

Lin Yu said with amusement, "Why have you suddenly become so reckless? This isn't the style my Hermione likes."

That's too reckless.

Besides, this was a masterpiece assigned by a professor, so Lin Yu suggested, "Why don't we join in? That's part of the fun of adventure, isn't it?"

What's the point of pushing forward all the way?

It's precisely these kinds of games, with a touch of danger and puzzle-solving, that make them fun.

That's why so many people enjoy playing escape room games, isn't it?

Hermione had to abandon her more outrageous plan, and the two of them also found several flying brooms by the wall.

She asked curiously, "Are these mechanisms meant to let us through, or are they meant to prevent us from going in?"

If you're going to set up a mechanism, why leave behind tools that can be broken?

Lin Yu shrugged. After all, the first book was still within the scope of children's works, so it was mostly a children's story.

It wasn't until the third installment that the style of the work gradually matured and became more complex.

Finally, the two put away their swords and each mounted a broom.

Hermione has now mastered excellent flying skills, and she playfully said to Lin Yu, "Let's have a competition! Let's see who can grab the key first. The condition is that you can't ride the Nimbus 2000."

"No problem," Lin Yu agreed with a smile.

So the two started a countdown, and when they finished counting "three, two, one," they both pushed off the ground and flew up.

The moment they took flight, the little creatures followed suit. They were enchanted by some kind of magic, and their flight speed was surprisingly fast.

Moreover, there were hundreds of keys flying around haphazardly, making it difficult to find the target.

At that moment, Lin Yu spotted a target and immediately rushed in.

He rushed into the hundreds of keys, ignoring the interference from the other keys around him, and grabbed the only one with sky-blue wings.

Lin Yu then turned around and called out to Hermione, "Let's go."

Although Hermione lost, the corners of her mouth turned up, and her eyes gleamed with an unusual light as she looked at Lin Yu.

Hermione was smart; she knew that Lin Yu often gave in to her and protected her.

But when it came to crucial moments, it was always him who stood in front of him, whether it was facing the professor's difficult questions or anything else.

With him around, I feel incredibly safe.

Although he was the one who caused the trouble most of the time.

The two grabbed the key and rushed to the door, pressed the still-struggling key into the keyhole, and then twisted it.

With a click, the door lock was indeed opened.

They then entered the next room, which was initially pitch black, so dark that you couldn't see your hand in front of your face.

Before Lin Yu could take out his wand again and cast the Illumination Charm, a burst of light was heard and the surrounding area lit up with fire.

When Lin Yu and Hermione could see the scene in the room clearly, they discovered that there was a huge wizard chessboard set up there, and they were right at the edge of the chessboard.

The black pieces in front of them were taller than they were, while the white pieces opposite them were equally huge.

"It seems we can only pass this level by winning one more victory," Lin Yu had already understood the rules.

But Hermione asked, "Do you know how to play chess?"

Lin Yu said, "I know Chinese chess, but this is Western chess."

Wizard Chess follows the same rules as Western chess; it would be strange if he knew how to play.

So whenever he complained about Harry and Ron playing chess, Harry would retort without hesitation, saying that Lin Yu was also a terrible chess player, on par with him.

A cunning and sharp-tongued brat.

"And you, Hermione?" Lin Yu asked in return.

Hermione smiled and said to Lin Yu, "Oh, darling, I'm sorry to disappoint you, I'm not very familiar with it either. But I know the rules."

The two looked at each other and suddenly burst into laughter.

Although it was an adventure, they didn't feel any danger; on the contrary, they found it interesting.

And they actually enjoyed it.

Isn't that interesting?

Hermione took out the Cloudwind Sword and held it in her hand, saying, "This time, you won't call me reckless, will you?"

Lin Yu also drew his Heavenly Gang Sword, nodded, and said, "Alright, let's unleash our fury then."

The two of them came to the chessboard together and went to the front of the black pieces.

Lin Yu took a deep breath, pointed his sword forward, and shouted majestically, "All troops, attack!"