Xu is the deepest crypt, and there is no living life at the end of the underground water veins, not even lichens and mushrooms. A trickle of water pools in front of a stone wall, flowing slowly down a mousehole-like gap.

Mu Yun re-examines everything around him, but finds that he can no longer find a way out, but where is the legendary Cancer King? Or, maybe that's just a legend, the waves of people sent by the Crypt People before, it shouldn't be possible for anyone to reach this place, they should have been crushed by the crab array before the waterfall even fell.

Mo Mo opened his soft hand, and there was still a little light in his palm, but it was a lot dimmer compared to just now, Mu Yun said with concern: "Mo Mo, if you are tired, you don't need to light it for me anymore, now we already have torches." ”

Mo Hehe smiled, "I'm not tired, but I don't know why, I can't emit such a strong light now, brother, aren't we looking for the Cancer King?" Where is that guy? ”

Mu Yun smiled bitterly, "It seems that I can't find it, it's a problem to get out of here now......" Mu Yun looked around carefully again, and the small boat he was in when he came stopped on the shore, but such a small boat may not be able to return to the tribe of the cavemen against the current. But apart from the waterway when you came, there are stone walls all around, where are there other exits? In this barren land where no grass grows, I am afraid that survival will be a problem.

"There's something!" Mo Mo exclaimed, and the light in his hand shone to the bank of the stream. I saw a cockroach shaking its two whiskers, but it was illuminated by the light and did not dare to move.

Mu Yun also felt strange, the species of cockroaches was extinct on Planet 18, but he knew that this was the most vital creature on the earth, living in the same era as the dinosaurs, until the destruction of the earth, human beings were basically extinct, but there are still countless cockroaches distributed in all corners of the earth.

The game is played at the end of a long winter, and cockroaches are supposed to be hibernating, so why do they appear in underground water veins, and they are still alive?

Mu Yun took two steps forward, wanting to see clearly, and the cockroach suddenly turned around and fled in the direction of the stream.

"It's fast to run," Mu Yun said to himself, ...... said.

Mo Mo tilted his head, and a string of data flowed through his eyes, "The temperature of this place...... It's on zero. It's weird......"

"What's so strange? Is this the underworld......" Mu Yun was taken aback, "yes, why is the temperature high here?" He put his hand in the water and found that it was a little warm. Could it be that there is a hot spring in this place, just to take a bath. ”

Mo Mo ignored Mu Yun's words, pointed to the stone wall where the stream passed in front and said, "The temperature behind is even higher. ”

"I'll go, do you have a heat sensor with you? How is it so clear? Mu Yun said and walked towards the stone wall, stretched out his hand and touched the stone on it, although he didn't feel how warm the stone was, but he also clearly felt that this stone wall was not as cold as other places.

"Is it behind this stone wall...... Is there a way out? Mu Yun said to himself.

Mo Mo nodded lightly behind him, and looked at the stone wall with a firm gaze, "Well, there is fire everywhere behind here, a fire that can't be burned, a big fire." ”

Mu Yun couldn't help laughing and said, "How big can a big fire be?" Let's open the stone wall and take a look! As he spoke, he drew the Red Sword, "Just to test the power of this sword." ”

Mo Mo said: "The hardness of the red sha is 6000, and the hardness of the stone wall is 3200, which can be cut off. ”

Mu Yun looked at him in surprise, "Where did you get all this data?" ”

"......I don't know," Mo Mo shook his head blankly, "I said it to myself." ”

"Is it the system again?" Mu Yun groaned secretly.

The red sword flashed, and cut diagonally against the stone wall, the spark sprayed outward with the sword edge, and the stone wall was also more than a foot thick, and a gap was cut by the red sword, and a red light burst out from the gap, reflecting Mu Yun's face, and he said in surprise: "Really, there is really a fire in the back." After saying that, his expression became nervous again, "It can't be magma, right...... Don't melt us both. ”

Mo Mo clapped his hands and laughed, "Great, Mo Mo wants to melt with his brother." ”

Mu Yun waved his hand again and again, "What nonsense?" Good and decent, what are you doing with me melting together? ”

"Then I can get together with my brother." Mo Mo said with an innocent smile.

Mu Yun shook her head, thinking: It turns out that she is still thinking about that incident.

"This fit...... There are many ways, and I'll talk about it later, now we get to the back of the stone wall to take a look...... "Anyway, there is no other way out, maybe the back of this stone wall is the way to live, and he won't really die in the game, it's just a big deal to experience some pain, he turned back to Mo Mo and said: "Mo Mo, you stay out of the way, if there is any danger behind the stone wall, you just leave me alone, run by yourself." ”

"I want to be with my brother."

"Not for now!" Mu Yun said categorically. Because he knew in his heart that the death of the spiritual pet could not be resurrected, so he could die, but he could never die.

"Brother, don't you leave it behind." Mo Mo looked at Mu Yun aggrievedly, and the pleading eyes couldn't help but make Mu Yun's heart flutter, but he was still ruthless, "This is not a request, it's an order, why don't you get out of the way!" ”

The mission of the spirit pet is to obey the orders of the master, Mu Yun said this, Mo Mo couldn't refute it, although he was very unhappy in his heart, he also had to leave, although Mo Mo didn't understand why he couldn't help but retreat.

"Brother, you have to be careful." Mo Mo said worriedly.

Mu Yun nodded, turned around and slashed again, the red edge was really extraordinary, but with this casual stroke, there was an extra red light on the stone wall, forming a bright fork with the previous crack. Then Mu Yun drew a big circle on the outside with a sword, crossed it with the red cross, and Mu Yun used the sword to write a big word "demolition" inside the big circle. As the last dot was over, the stone wall began to collapse downward, turning into a hole more than half a man high.

I saw that there was a cave in the entrance of the cave, it was very wide, more than a dozen pillars of fire rose to the sky, stirring the pitch-black cave roof, and the flames spread horizontally at the top, illuminating the cave in a red, as if it was a Parthenon made of flames. The stream beneath his feet was flowing into the Temple of Flames, the scorching flames making the water sizzle and emit a white mist upwards. There were countless black swamps around the flames, constantly bubbling outward, and the strong smell of gas was almost suffocating.

"No wonder there is a fire that burns even if it doesn't end...... It's full of burning crude oil. Mu Yun couldn't help but be stunned, let the flames form a temple, how did those people come up with such a design? Except for the Heavenly Craftsman, Mu Yun really couldn't find any words to describe the scene in front of him, with so much oil, the caveman would no longer have to live in the dark.

"Well, this is a huge oil mine, but it's really strange that so much heat is gathered here and it doesn't explode."

"Not surprisingly, we are at the bottom of an active volcano. Heat erupted from the crater. ”

"But where is the exit?" Mu Yun casually wanted to put the red sha into the sheath, but the red sha said that he couldn't put it back. Only then did he remember that after the red sheath was unsheathed, there was no blood.

At this moment, the sword body suddenly trembled violently, the tip of the sword suddenly pointed forward, Mu Yun also couldn't help but put on a fighting posture, the music of the system became tense again, and a huge figure in the Flame Temple was slowly emerging......