The next day, Gargado called Karl over through the magic communication stone.

The mentors' dormitory was much better than the students' dormitory.

The space was bigger and it was decorated luxuriously.

"This is your Devil's Den pass, but I can only allow you to move within a hundred miles."

Gargado handed Karl a red magic card.

Karl took it and looked at it. It was almost half as small as his student magic card.

However, this was just a pass to the Devil's Den.

It doesn't help for it to be too big.

After Karl took the pass, Gargado continued, "There is a base built by the Holy Vestige Magic Academy in Devil's Den. And its purpose is, of course, to resist the magical beasts."

"Within a hundred miles of the base, the highest level of magical beasts is Level Two. As for higher level magical beasts, they don't dare to get too close to the base."

"Therefore, with your current rank, you can only move within a hundred miles."

"Thank you, Teacher Gargado."

Karl smiled.

As an extremely large city, Ancient City of Oz naturally didn't have any magical beasts outside its city.

Therefore, if he wanted to fight against magical beasts, he could only head to the Devil's Den.

"Don't think that you'll be safe within a hundred miles. Every day, there might be a wave of beasts in the Devil's Den. It's fine if you're near the base, but if you're far away, it'll be troublesome."

"I understand, Ms. Gargado."

Karl nodded.

Before he got stronger, he would naturally not go to a dangerous place.

Otherwise, he would be courting death.

Then, Gargado took out two special bottles from the drawer.

The bottles contained liquid, one blue and one red.

Gargado said, "The blue one relieves pain, and the red one restores health. Take them."

"Teacher, this is too expensive. I can't accept it."

Karl looked at the two bottles of liquid and said slowly.

In the past few days in the magic academy, he did not just compress magic every day. He learned some knowledge as well.

He knew that these two liquids were very precious.

If converted into gold coins, the market price of a bottle was 50,000 gold coins.

Two bottles would cost 100,000 gold coins.

This was different from the recruitment conditions previously. After all, those things were given by the academy.

These were Gargado's personal assets.

"Don't stand on ceremony with me. Just take it."

Gargado pretended to be unhappy and said, "Don't worry, I can't give them to you again. After all, I don't have that much money."

Karl smiled and finally accepted the two bottles of liquid.

These two bottles were also useful to him.

After all, if he were to fight against a magical beast, it was inevitable to have some physical contact or get injured.

"By the way, if you want to go to the Devil's Den, it's best to find a few people to go with you. It's always good to have company to watch each others' backs."

"Okay." Karl nodded.

To him, it didn't matter if he was alone.

Furthermore, he was not close to many people here.

Then, Karl left and headed to the Devil's Den.

The Devil's Den was located southeast of the Holy Vestige Magic Academy.

Karl arrived and saw a magnificent tower.

A terrifying aura pervaded the surroundings of the tower.

These were the auras of the mages of the Ancient City of Oz.

An army was stationed at the base of the tower.

However, these soldiers were all ordinary people.

They were sent by the mayor of the Ancient City of Oz to assist the Holy Vestige Magic Academy.

They drove to the base of the tower.

Immediately, one of the teachers guarding the entrance stepped forward and asked, "Student, please show me your pass."

This teacher had a powerful aura and a scar on his face.

"Hello, Teacher."

Karl handed over his pass and looked at the teacher in front of him.

He looked at the teacher with great respect.

He learned from the academy that these teachers were stationed here almost all year round without even taking a step away.

Once the base inside the Devil's Cave cannot be defended, these teachers would go down immediately.

In the Ancient City of Oz, these teachers might not be the strongest, but they were the most respected.

"A special admission student?"

The teacher glanced at Karl and said, "Not bad, but this is your first time here. You must be careful in the Devil's Den."

"I understand, Teacher. Thank you for your reminder."

Karl replied and entered the tower.

The surroundings became a little tense.

Karl looked straight ahead. There was a cave entrance emitting a blue light.

This was the entrance to the Devil's Den.

The entrance was filled with a force that made one's heart palpitate.

Karl stepped slowly into the passage.

"Buzz!"

The moment he entered the passageway, the surroundings became even darker, and he could smell blood.

Karl walked forward and soon emerged from the passageway.

In front of him was a huge square.

There were soldiers stationed in the square.

The buildings around were made of special materials. However, they were already damaged and someone was repairing them.

It seemed like a wave of beasts had just attacked.

Further away was a wall that was 300 meters tall.

The walls were also made of special materials and looked indestructible.

But there were many scratch marks, bite marks, and countless unknown marks on the walls left behind by magical beasts.

"This… red sun!"

Karl looked up into the sky. The sky was filled with demonic energy, dyeing the sun red!

It gave off an intense pressure.

Standing here, Karl felt extremely small and weak.

"Karl!"

At this moment, a familiar voice sounded.

Karl turned around and saw Elena smiling at him.

"Elena?"

Karl said with uncertainty.

After all, she had a twin sister. Apart from their slightly different personalities, they looked exactly the same.

At least now Karl wasn't able to tell the two apart.

"It's me, it's me."

Elena nodded like she was pounding garlic. She smiled so widely her eyes disappeared into squints.

Elena was happy. She never expected to meet Carl here.

Originally, she was a little unwilling to be forced into the Devil's Den by her sister.

However, the moment she saw Karl, all her unwillingness disappeared.

It was a subconscious change that even Elena didn't realize.

Karl looked at her and asked, "Your sister didn't come with you?"