"Eternal Furnace!"

This is the most confidential and advanced technology in the wizarding world. In ancient wizarding civilization, there was no such technology.

This technology is a brand new technology created on ancient ruins after the establishment of the wizarding kingdom.

Because of the "Eternal Furnace", the magic city's combat power has become even stronger. The "Eternal" level magic city is far more powerful than the main battle magic city.

It is equipped with a stronger energy gate and a stronger magic city main cannon.

It has stronger endurance and can operate in any harsh environment.

The Knight system was created based on the development of Magic City technology. The elemental heart of the legendary knight, the "eternal heart" of the strongest knight.

The Eternal Furnace is extremely complex, and although the Eternal Heart is simplified, it is still complex. For ordinary people, it is simply a technology that is like a mystery.

To be precise, the Eternal Furnace is a collection of eight elemental powers, which are coordinated to form a new energy. It does not need to absorb external energy and will never run out.

If the magic city under siege this time is the Eternal Magic City, then Shadow Crow will cry.

Because the eternal magic city will never fall.

So to be precise, the eternal heart in Luther's body is just one of the eight powers, and can be called the "Eternal Heart of the Earth."

When Luther obtains the "Eternal Heart of the Earth", his power will be inexhaustible, and the heart will only stop functioning if Luther is killed.

But to kill a powerful knight is certainly as difficult as ascending to heaven.

In order for Luther to master this technology within ten years, the Lich Master did more than just divide Luther's soul into eight parts.

There are other means.

Under these circumstances, Luther's progress was extremely rapid.

Ten years later! Still in the Earth Space, Luther was sitting cross-legged and suspended in the space. The Lich Dean was in front of Luther. He was sitting on a chair inlaid with gems, absolutely a rich man.

Just before this, Luther had already completed the knowledge intake. A fool miraculously memorized a lot of complex knowledge through the effect of the potion.

"The acquisition of knowledge has been completed. There are still ten years left. This time is divided into two parts. The first five years are for you to build the two hearts in your body. After the eternal heart is built, you will spend five years to strengthen your body to the level of the strongest knight."

The Lich Dean said, with some heartache: "Although you have two elemental hearts, it is an advantage, but when you grow into the strongest knight, you have to spend twice as many resources. The special treasures needed to build an eternal heart are enough to exchange for a main battle magic city. Add to that the treasures needed to strengthen your body in the future, I have spent at least the wealth of five main battle magic cities on you."

Although the strongest lich has a lot of wealth, as rich as a mountain, but no matter how rich he is, he can't resist the fat man's eating. Luther is twice as fat, and he eats a lot and is very fierce.

"I didn't ask you to let me advance." Luther muttered in his heart, but tactfully kept silent.

It's not our style to complain after getting benefits.

The Lich Master felt a little heartache, but then it passed. Then he really took out many kinds of treasures, each of which exuded a unique aura.

Some are fierce, some are gentle.

You can tell at first glance that it is a rare treasure in the universe.

To become a powerful person, luck plays a big part. Because there are not many treasures that can build the Eternal Heart, and some of them cannot be found or bought even if you are rich and powerful.

At this moment, Luther was the lucky one whose road was paved. Everything was prepared for him by the Supreme Lich, and he only had to work hard to become the Supreme Knight within 23 years.

After thirteen years of hard work, Luther has been tempered and all that remains is to build an eternal heart and a strong body.

"Let's get started."

Luther took a deep breath and said excitedly.

At this point, there is nothing more to say, just keep working.

Eighteen years!!! In the trapped land, the battle has been going on for eighteen years.

The sky still seemed like a piece of black cloth, with endless dark crows circling in the sky. To the dark crows, it seemed as if the eighteen years did not exist, they were really endless.

On the side of the Academy Magic City, the fighting corps had undergone a huge change. The fighting in the sky was mostly with golem corps, and the undead corps gradually became scarce.

Without the replenishment of corpses, the undead army of the most powerful lich became a minority force after casualties. The main force was naturally the legendary golems that were continuously built by the legendary wizards of the Wizarding Society.

One after another, the legendary golems of the "Attacker" model continued to fight with the Dark Crows in the air.

In addition to the Undead Legion and the Golem Legion, of course there are also legendary human knights.

Those who can enter this school are the top talents in the wizarding world. Under normal circumstances, most of these 500 students can become legends within 20 years. Even if they cannot become legends within 20 years, they can become legends within a few years after leaving the academy.

This academy is a true cradle of legendary knights.

The war lasted eighteen years, plus the three years of study before that, it has been twenty-one years. All the students of this class have become legendary knights.

The first group of people who joined the battle had already become legends even ten years ago.

Because they relied on the magic city to fight, the knights had no casualties. The first batch of students who entered the legend level even became mid-level legends because of the uninterrupted battles and magic potion replenishment.

With the addition of these five hundred legendary knights, the defense of the Academy Magic City has been able to hold on to its current level. After all, compared to golems and undead, human knights are much more powerful even if they are at the same legendary level.

But even so, the Academy Magic City gradually couldn't hold on and was almost exhausted. In the past eighteen years, too many golems were lost, and too many materials and elemental crystals were consumed.

There are very few newly produced golems at present. Most of them are destroyed in battles, repaired, and then released into battle.

Everyone felt that the Academy Magic City would not be able to hold out for many more years.

All the legendary wizards and legendary knights felt extremely stressed.

When will the darkness in the sky dissipate? When will the dark curtain be lifted? When will the battle end? Will we be able to survive?

This is the question in everyone's mind.

At this moment, the most powerful Lich Dean has not taken action personally. This is also the belief that the wizards and knights insist on. Otherwise, everyone's morale would have collapsed long ago.

(End of this chapter)