"Professor, we've reached the bottom of the cave and asked for permission." Ye Sheng used the infrared detector to look around, and when he saw that there was nothing unusual, he took a breath and reported the situation here to the command post.

"Is there anything unpleasant?" Mance didn't agree, according to the previous detection process, the robot would be damaged before the halfway point of the field, but the excellent hybrids could mitigate this impact to a certain extent, which is why the Greenland Sea mission at that time and the current exploration mission sent a real operation.

"Shhh...... This is still not true, except for some burning pain in the breath, it should be the mercury mist oozing from the central matrix that has played a role. Ye Sheng opened his backpack, took out the components from it and began to assemble them.

This is a special lighting system designed by the equipment department, which can illuminate the campus as if it were daylight at maximum power, and contains enough hydrogen energy to support it to work for four hours.

Ye Sheng carefully put together the device in his hand, he remembered that when the guy from the equipment department handed over this thing to him, he specially reminded him several times, he must not bump it vigorously, otherwise the device will explode, and the power is no less than that of the C4 bomb.

The things developed by the equipment department have always been known for their multiple uses, and Ye Sheng guessed from the moment he took over that this device had a role as a weapon in addition to lighting.

With the flip of the gears, the device emitted a soft light, Ye Sheng secretly estimated that this level should be enough, so he cast his gaze to the inside of the hole.

Under the illumination of the light, the appearance of the cave finally appeared in front of the two of them, not so much a cave, but a square, about the size of a football field, countless glass-like inverted cones hanging at the top, they themselves have color, under the illumination of white light, flashing and shining with various colors.

Seeing the scene in front of them, both of them were stunned for a while.

"It's ...... Karst cave? Aki frowned, although the gorgeous scene in front of her was attractive enough, she was also well-informed, and she was not like a little girl who had never seen the market.

"What happened?" Mance listened to the movement in the channel and immediately interjected.

"Report, at the bottom of the cave, we found a large stalactite, which looks like ...... Is it a cave? Aki smacked his lips, still looking around alertly, he always felt that something was wrong here.

"Caves?" Mance looked at the man with glasses on the side, who immediately picked up the information and thought for a long time, then shook his head:

"Impossible, there can't be a karst cave here, we have done three surveys of the geology around here, and it is not the geology that produced the karst cave at all."

"Then why ......" Aki took a big breath, for some reason, from just now, he was a little out of breath, and his consciousness was a little confused.

"It's really not stalactites." Staring ahead for a long time, Ye Sheng shook his head softly, he looked at the crystal object that emitted a strange light on the wall, took out his dagger and slashed at it.

After a crisp sound, the dagger specially made by the equipment department was bent and shattered from the medium and short, but the 'stalactite' that was cut down was still unharmed, still exuding a soft light.

"It's harder than metal." Aki Aki's pupils shook and he exclaimed in a low voice.

"Yes." Ye Sheng pressed the camera on his chest, filmed the scene in front of him, and transmitted it to the headquarters.

"Looks like it's the foundry of the Lord of Bronze and Fire." Schneider looked at the photos that came back, and his tone rarely fluctuated: "This should be the death metal that has been extracted from the spirit." ”

Spirit? Metal? Aki wanted to ask what this meant, but when performing tasks, it was necessary to avoid such long, irrelevant discussions, otherwise it would easily greatly affect the Commissioner's concentration.

"Request further exploration of the interior of the cave." Ye Sheng cleared his throat.

"Approval, stay safe." Mance gave the order.

Ye Sheng gestured to the girl not far in front of him, in the case of mercury mist, even if he was protected by special armor, he should try to communicate with his mouth as little as possible.

Aki nodded, and the two of them leaned closer to each other with their backs close to each other, leaning forward step by step.

If it weren't for the dragon clan, this place should be opened to become one of the most well-known attractions in the world, Ye Shengbian was wary of the dangers around him, and unconsciously thought that this place was more magnificent than any palace he had ever been to, and it was not mixed with any gold and silver, but simply used metal that had lost its spirit, and took off a trace of tackyness.

As the top three students of the year in Kassel Academy, Ye Sheng is not like Jiude Aki who spends his days trying to pass at the end of the semester, and his grade point is almost a perfect score, which is one of the few in the history of the academy, after all, the courses of the academy are not serious things, and if you can learn them well, the brain circuit must be different from ordinary people.

He clearly remembered that in the vice-principal's "Principles and Utilization of Alchemy", it was said that from ancient times to the present, the highest dream of all foundries is to extract the spirit from the metal, or kill the metal, and completely liberate their potential.

Countless alchemists have achieved great things in forging, and they have even created the Philosopher's Stone made of the fifth element, capable of breaking through the Dragon King, but the spiritless metal is still beyond their capabilities.

Only one person in history has ever succeeded, but he is not strictly a 'human', as he is known as the Lord of Bronze and Fire for his mastery of alchemy, and he uses refined metal to create weapons to punish his brothers and sisters.

As if it was carefully designed, the light and shadow were reflected to the ground through layers of crystalline objects, illuminating the square completely, like a stage, Ye Sheng and Jiu De Aki stood in the center of the stage, above them were a lens with a strange light, all kinds of light were intertwined, if it weren't for the mercury floating in the air that brought pain to the two of them all the time, maybe they would forget that they were on a mission.

"Ye Sheng, can you hear me?" In the channel, Schneider, who had been silent for a long time, asked.

"I can hear you."

"I have a foreboding feeling that there seems to be something in the depths, and although it may be a bit subjective, I'm sorry I had to take this mission for now. You can choose to come up, or study the metals. Schneider said.

"Do you want to take some samples back?" Aki asked.

Ye Sheng laughed out loud: "Its hardness is no less than any substance in the world, even if you use all the methods, you may not be able to get a small piece." ”

"Who said that?" Aki looked a little incredulous, and struck the nearest crystal with his dagger a few times, and the tip of the steel blade paused little by little, but it did not cause any substantial damage to the metal, only stirred up a layer of white powder, which was attached to it after the mercury vapor had cooled.

"Outrageous." Aki Aki's hands were a little numb from the knock, and he gasped a few times, and threw the bladed dagger on the ground, leaning against the stone wall beside him.

The moment the girl leaned on it, she grinned again, and her exclamation made Ye Sheng, who was taking pictures on the side, also cast his eyes.

"What's wrong? Don't make a fuss, be careful to wake up the Dragon King. Ye Sheng joked, stopping to explore and letting his tense nerves ease slightly, if it ended here, it seemed that there should be no danger.

Although, his 'snake' was faintly messing around, spitting out letters below, as if he was confronting something.

"How soft are the stone walls here?" The girl frowned, turned to look at the stone wall, although it was a little uneven, but what was the feeling of collapse just now?

Could it be ...... Jiu De Yaji stretched out his hand and touched it, his expression changed greatly under the mask, and Ye Sheng on the side felt that something was wrong, so he also paused the shooting and leaned over.

After groping his fingers on the stone wall and scraping away the outer layer of mercury attachments, he gradually wiped away the camouflage soil, which should be a decorative object such as clay to be precise, or a protective object before the famous painting was opened.

"We seem to have found something out of the ordinary." Ye Sheng's picture scroll in front of him slowly spread out and reported to the executive department, while Jiu De Aki was like a little girl painting, gently scraping the protective object with her fingers.

"What?" Mance asked.

"A painting, no, it's not a painting, it's a painting on a wall." Ye Sheng looked at the wall that was gradually revealing color, and bit his lip tightly, his bad premonition became stronger and stronger, but he couldn't tell what it was.

After fully restoring a part, Aki also took a few steps back, if what she did just now was out of curiosity, then now she is out of reason, in this case rash action is definitely not the best choice, maybe the principal and vice principal will have some anticipation of this situation, waiting for the opinion of the conductors is the most correct.

"Painting?" Schneider was also confused, the picture scroll generally has a strong religious significance, and the end of religion generally contains dragon elements, but he doesn't understand, why the King of Bronze and Fire would leave a painting in such a place, if it is to praise himself or the merits of the Black King, shouldn't it be placed in a more obvious place?

This is his foundry, and according to the Night's Watch, it is a huge matrix of mercury that can be fatal to any dragon, so if no dragon comes here at all, who is the painting for? Could it be that the Lord of Bronze and Fire anticipated the demise of dragons and the awakening of humanity?

If not, what is the significance of the painting to him? That's why he left his paintings here?

For a while, Schneider was also completely disoriented, not knowing what to order next.

"I think we can try to scratch a little bit more and see what it represents." Ye Sheng made a suggestion.

"I think I can, too." Mance agreed with his beloved disciple.

"Then let's do it." Schneider thought for a moment and agreed with the two of them.

After hearing the voice in the channel, Jiu De Aki quickly started to act, and the reason why she and Ye Sheng partnered was that the two had obvious advantages and disadvantages and could complement each other.

The former has strong hands-on ability, the latter is better at judging and making plans, and the two can be said to perfectly make up for each other's shortcomings.

The girl took out the wire, walked to the end of the wall and nailed it, and drew an arc on the other side with her hands, gently scraping off most of the camouflage, while Ye Sheng scraped off the remaining parts with his fingers little by little until the mural was completely revealed.

Looking at the huge mural that surfaced in front of them, the two of them and everyone in front of the screen were confused.

Why...... Feeling like it's something left behind by a child's scribble?

Completely contrary to the mysterious and exaggerated religious painting style in my impression, this mural is still a little ugly, and the characters are all in the most basic stickman shape, Ye Sheng remembered the 'family of three' he painted when he was in elementary school.

From the very beginning, Ye Sheng tried to interpret the meaning of the painting, but in fact, it could not be called interpretation, because the content of the painting was too easy to understand, one big and one small two stickmen seemed to be traveling, they came to the place where the spring flowers bloomed from the iceberg and snow, and found a mountain forest to live in seclusion.

After that, they were hunted down, and the dark shadows should have meant that...... Ye Sheng slandered, their residence was swallowed by the sea of fire, but fortunately, two stickmen, one big and one small, still escaped.

And then, they came to an underwater? Or in the sky? This piece of azure blue made Ye Sheng a little confused, anyway, it didn't seem to be a happy ending, the big stickman never came back after he went out, and only the little stickman was left alone in the blue.

At the end of the scroll, there were two columns of clumsy handwriting engraved, and Ye Sheng searched all the words he learned in his mind for comparison, but he still didn't recognize what kind of text it was.

"I feel...... It seems like a child who sees his parents at work and is not at home to play with him, and then gets angry at what is left behind on the wall. Aki said.

"It reminds me of when my son was little." Professor Mance agreed.

Ye Sheng thought about it when he was a child, and he didn't say anything against it.

"But in his honorable capacity as the Lord of Bronze and Fire, any dragon would be afraid of him, and who would scribble on his foundry?" Mance whispered.

"Wait, this pattern...... I think I've seen it. There was an exclamation from the channel, it was not the voice of any of the four, and Mance stared at the man with glasses who grabbed the microphone and shouted, just about to scold him as himself, but stopped the moment he saw his expression.

That expression is the same as the despair of a person who escaped death when he encounters a dead end again.

"Where have you seen it?" Schneider still held his breath and said.

"Ten years ago, on the bronze pillar of the Sea of Ice." The man's voice trembled a little.

The four "......" were silent at the same time.

The translated content of the Ice Sea Bronze Pillar Table was top secret, and among all the people present, only Mance and Schneider probably knew the result of the translation, but they had never seen the original.

If there is an exception, it should be the man with glasses, he was on the scientific research ship that fished for the copper pillar table of the ice sea, and it can be said that every article passed his sight.

And there was one of them, he was extremely impressed, because the ice sea bronze pillar table was more complete than the others, and the decoration was more ornate, obviously not something extraneous.

Ice Sea Bronze Pillar Table ...... Schneider and Mance had a strange feeling in their hearts, that mission had cast an indelible shadow on them, and anything that involved it should not be a good thing.

"Are you sure?" Schneider struggled to keep his voice down.

"I'm pretty sure."

"Then let's retreat first." Mance sighed, "The picture has been taken, we can let the night watchman interpret it." ”

"Wait, as if something is moving." Ye Sheng, who quietly released the spirit of words, said suddenly.

The next moment, a loud boom echoed throughout the space.