The second prospecting, compared to the first time he entered the abandoned iron ore, Gu Yuan had more experience.

He deliberately spent some energy to exchange the lord's crystal for three mining helmets, the kind with a light source on the helmet.

Following the railroad tracks at the entrance of the mine, thirteen giant wolves walked into it in twos and twos.

In the dark tunnel, a fan-shaped light from the front light source illuminates the road ahead, and the two light sources in the back row sit side by side, and the fan-shaped light from the helmet is staggered.

With Gu Yi opening the way in front of him, and Alice beside him taking care of him, Gu Yuan was very relieved to start wandering outside the world.

He began to think about the strange hint he had received when he had used the Eye of Knowing to scan the 'abandoned copper mine'.

【Abandoned Copper Mine】

Status: Occupied (7/7)

Monster Types: Machine (Large Variety)

The Copper Mine is occupied, and there are only seven monsters in it.

But that's not quite right.

According to normal logic, that iron mine belongs to a medium-sized iron mine, and this copper mine seems to be a large copper mine, and there should be more guardian monsters in this copper mine than that iron mine.

The guardians of that iron mine are ten black iron-level demon soul wolves, so there should be more guardians of this copper mine than ten.

And there is such a situation where it does not increase but decreases, Gu Yuan can only think of one possibility, bronze level!

Guarding this place should be seven bronze-level monsters that are much stronger than the Demon Soul Wolf!

"It's an uphill battle!"

Gu Yuan sighed, his body swaying slightly with the movement of the Howling Moon Wolf under him.

Beside her, Alice cautiously watched her surroundings, the light of her mining helmet spinning around as she looked around alertly.

Hearing Gu Yuan's self-talk, Alice asked puzzled.

"What kind of hard fight?"

Gu Yuan smiled, an inscrutable weird smile on his face.

"In the face of a tough battle of seven bronze heads, are you surprised, surprised, happy?"

Alice nudged him angrily, "I really don't understand what you think, how can you be happy in the face of the seven-headed bronze rank?" ”

Gu Yuan shrugged his shoulders and did not answer.

The team continued to move deeper into the pit.

But as the depth of the team increased, Gu Yuan gradually discovered that something was not quite right.

The original mine was old, and the rocks on the walls were weathered and broken, and it was clear that the mine had been opened for a long time.

The same is true of the first section of the rails, which are covered in patina and rotten, and the weight of the giant wolf will crunch the rails with a single kick.

But as everyone went deeper, the rock wall began to become smooth and regular, and the traces of weathering disappeared, and the whole mine gave people the feeling as if it had just been dug out by hand.

No, and it can't be said to be artificial, it's a tunnel dug by some kind of drilling equipment.

This explains why the tunnel is so smooth and full of geometric beauty.

The rails under your feet have also been upgraded from the traditional method of laying sleepers on steel rails to the integrated pouring of iron slurry. Even in the latest section of railroad tracks, Gu Yuan felt the flow of magnetic force, as if it was a magnetic levitation high-speed railway.

After another five or six minutes of travel on the maglev track, the team came across a palace built underground.

Gu Yuan looked at the magnificent palace in front of him and sighed: "Where is this still a copper mine, this is obviously a dungeon dug underground!" ”

"I just don't know that this is the handiwork of that race, and it is so much construction underground."

The palace is semi-enclosed, with four columns supporting a purple-gold dome, and there is no other exterior wall, like the Colosseum of ancient Rome on Earth in the previous life, with columns separating the palace from the outside world.

The team walked up the steps step by step, and taking advantage of this effort, Gu Yuan observed the murals carved on the pillars of the palace.

The frescoes of the four pillars tell the same story, and the outlines of the whole story are complemented by the four pillars in a clockwise order from the top view.

The column at the north corner is the starting point of everything, and on it is a handsome figure with a naked upper body and the lower body replaced by the lower limbs of a horse.

For the speed of the handsome people, the relief on the first column is depicted with a lot of brush and ink. For example, the centaur overtakes the breeze, the centaur surpasses the waterfall, and even in the last mural, it expresses the image of the centaur conquering the lightning in speed.

The second pillar is a relief that tells the story of a classic adventure. During the journey, the centaur meets the princess who is in distress and saves her. The two were united in the presence of the old king, and the handsome people inherited the throne of the old king, and had a happy time with the princess.

Unfortunately, the good times did not last long, and in the third column, the situation took a sharp turn for the worse.

The handsome men and horses went around conquering other kingdoms, each of which was the vanguard, and relying on their superior speed, they were invincible, conquering several countries around them. During an expedition, the princess came to the battlefield to cheer up her husband, but the men and horses in the bloody battle did not realize her arrival, and still used the rapid rush to kill the enemy.

When the centaur returned from the enemy camp with the head of the enemy general, he finally saw the arrival of the princess. Unfortunately, he was so fast that he couldn't stop himself.

In the midst of the princess's frightened look, under the guilty look of the centaur, the centaur passed through the princess's body and knocked his beloved into flesh.

The fourth pillar depicts the end of the centaurs.

He was drunk and dreamed of death every day, and the speed that he was most proud of in his life brought him the most painful consequences. Eventually, he made a deal with a 'god' to resurrect his wife at the cost of becoming an 'angel'. But he himself had to leave his homeland and never see his resurrected wife again.

Gu Yuan finished reading the story but didn't extract any useful information, the only thing he could know was probably the guard boss in this palace, who was a centaur who was known for his speed.

Thirteen giant wolves passed through the pillars and entered the purple-gold palace.

The moment everyone entered, the palace became bright as if all the lights had suddenly been lit.

Four walls of electric light rose between the pillars that passed behind, and it was obvious that it would be difficult for Gu Yuan and his party to get out without defeating this boss.

Gu Yuan set his eyes on the boss in the middle of the palace, wanting to see what kind of honor the so-called 'angels' and 'centaurs' would be.

I saw a 'petite' man and horse lying in the middle of the palace.

The reason why this centaur is said to be 'petite' is because compared to the giant wolf, which is only two or three meters tall, this centaur with a height of only one meter eight can only be called petite.

The whole body of the centaur has been replaced by mechanical components, the eyes have been replaced with flexible prosthetic eyes, the four hooves under the feet have been replaced with more flexible power feet, and the original position of the heart has been replaced by a slowly running power furnace core.

It can be said that at this time, the centaur has completely become a machine and a puppet.

And this is the truth of the so-called 'becoming an angel'!