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

This was clearly a misunderstanding, and Merkus did not show much hostility.

Judging from her willingness to learn human languages ​​(English), she still has some positive feelings towards humans.

However, Lin Yu did not let his guard down. He handed the Cloud Mist Sword to his right hand, while his left hand remained tightly wrapped around Hermione.

He had to be prepared to protect Hermione. In case of an emergency, he could either use the Nine Forms of Cloud Abyss to protect Hermione or immediately fly away on his sword.

While it might not be possible to escape thousands of miles away, flying hundreds or thousands of meters in an instant is certainly not a problem.

With renewed confidence, Lin Yu circulated his spiritual energy, spreading it out from his body to envelop himself and Hermione. This caused the water around them to be repelled, creating a situation similar to bubbles in water.

And both of them felt dry.

Mermaid Mokus swam around the aura barrier quickly, seemingly very curious.

But she couldn't sense what spiritual energy was.

After all, this is a power system that doesn't belong to this world.

Lin Yu was finally able to speak inside the bubble, saying, "I apologize. We actually came here to fish, but we didn't expect to catch a mermaid instead. It was a misunderstanding."

"You're going fishing?" Merkus asked, puzzled. "Since when has Hogwarts fallen so low that young wizards have to hunt for themselves?"

Hogwarts certainly provides room and board, and often there's even plenty left over.

However, Hogwarts has a group of house-elves, and the Forbidden Forest is nearby, with its sewers directly connected to the Black Lake, so there's no need to worry about wasting food.

Uh, that's right, although it's not a good way to put it.

But in fact, all the drainpipes inside Hogwarts Castle drain directly into the Black Lake.

Myrtle was once flushed into Black Lake by toilet water.

She also complained.

No wonder this mermaid leader's teeth are yellow?

Hmm...

"I have a feeling you're thinking something rather impolite?" Mercus looked at Lin Yu with suspicion, his disdain practically overflowing.

Well, after all, mermaids aren't beautiful mermaids, Mercus scoffed. "I bet you think we're beautiful mermaids, right?"

Lin Yu dared not reveal his thoughts, for they were too sordid. If the mermaid leader knew what he was thinking, he might incite a war between the two tribes.

Your teeth are so yellow, are you eating us...?

"Alright, whatever you do, if you just want to catch a fish, wait here for a bit," Mercus said, flicking his tail as he swam away quickly.

Hermione breathed a sigh of relief. Actually, she was quite nervous just now. As I said before, Hermione still needs to improve her practical skills.

Rather, she had never actually had a physical conflict with anyone before, let alone faced a magical creature.

Lin Yu smiled and reassured her, "Don't worry, Hermione, as long as I'm alive, no one can bully you, not even me."

Hermione looked up at Lin Yu's earnest eyes, and was moved. She subconsciously nuzzled her head against Lin Yu's shoulder.

Perhaps for many people, their relationship progressed too quickly; they decided to be together after only a little over a week of getting to know each other.

But they themselves don't realize it.

If two people can be honest with each other, how can their love not last forever?

Moments later, Merkus's return interrupted the tender moment between the young couple.

Merkus looked at the two of them in surprise and asked curiously, "You two aren't even adults yet, are you?"

Hermione hid in Lin Yu's arms, her pretty face flushed red, refusing to show herself.

Lin Yu replied magnanimously, "We're just together now, and we don't plan to have children right away. Human emotions are different from those of animals."

Mercus's yellow eyes rolled, as if they, the mermaids, were animals.

What an impolite little wizard.

Mercus casually tossed something out; it was a fish.

"Alright, now take this fish and you should go back to shore," Mercus began to shoo them away. "Besides, the Black Lake isn't as peaceful as it seems."

Besides mermaids, Black Lake also has other creatures, such as giant squid.

Yes, you read that right, it's a giant squid.

Black Lake is clearly a lake, while giant squid usually only appear in the deep sea.

God knows how that huge thing ended up in Black Lake.

Some even suspect that this giant squid might be the Animagus form of a wizard, which is why it has a favorable impression of humans, especially the young wizards at Hogwarts.

But it's also too big.

In addition, there is a magical creature called Grindylow. Although mermaids like to keep them as pets, these magical creatures are very aggressive. They will attack any creature that gets close to them without hesitation, especially humans.

Furthermore, there is a horse-shaped lake monster in Black Lake.

That's right, Black Lake also has its own monster.

In conclusion, the Black Lake is indeed very dangerous, especially for underage wizards.

So this is one of the two forbidden areas of Hogwarts.

Lin Yu reached out and grabbed the fish from outside the spiritual energy barrier, secretly asking the system, "Is the mission complete?"

System: "The mission was completed the moment you caught that mermaid."

Okay, he just didn't hear the system notification sound.

Since that's the case, Lin Yu didn't need to waste any more words. He immediately pointed his sword at the top of the Black Lake and activated his sword flight. Although he wasn't riding on a flying sword, he was still guided by the Cloud Mist Sword and quickly flew out of the lake with Hermione in his arms.

Once they reached the skies above Black Lake, Lin Yu threw down the Cloud Mist Sword and, before the two of them landed, firmly stepped onto the sword's blade.

Then Lin Yu, still holding Hermione, flew straight to the shore on his sword.

Of course, he hadn't forgotten the fish. He held Hermione in his left arm and the fish by the tail with his right, and no matter how fiercely the fish struggled, it couldn't escape.

This fish is huge! It's over a meter long, almost as tall as Lin Yu.

It has to weigh several tens of kilograms.

In a short while, Lin Yu brought Hermione back to the shore.

They had barely landed when a group of people came jogging towards them from a distance. From afar, they could hear Professor McGonagall's voice calling out, "My goodness, Merlin above, how are you two fools? Are you alright? Did the mermaids eat you? Or bite off a hand? A leg?"

"Minerva, don't panic, they're alright, thankfully they're all alright," Dumbledore said, following closely behind Professor McGonagall. However, he was clearly more composed than Professor McGonagall, so when he saw Lin Yu and Hermione, he went from jogging to strolling slowly.

Lin Yu and Hermione then realized that Hagrid was leading Dumbledore and Professor McGonagall straight here.

"What's going on?" Lin Yu couldn't help but ask, "Did they know we were going to make stewed fish, so they came to freeload?"

But when Hagrid, that big guy, came up to the two of them, he sat down on the ground with a 'thud'.

The poor little giant was on the verge of tears: "Merlin's Beard, I almost thought something had happened to you. I saw you being dragged down by the mermaids from the shore, and I had to go and call Dumbledore to save you."

Well....

It seems I've gotten myself into trouble?