Ren Yi walked forward in the darkness, unable to see anything. The rocks formed by melting and then cooling and condensing beneath your feet are undulating and full of traces of flow, making it very difficult to walk.

Ren Yi was very uncomfortable at first, and it took a long time to get out of a short way. At this time, he was still in a cautious mood, but immediately felt that it was too much time.

After all, this is underground, and there will be no secondary monsters in the future, so Ren Yi simply took out a flashlight and turned on the illumination.

Hmmm-

A white halo of light fell to the ground, instantly illuminating the entire scene in front of you.

Ren Yi looked up and couldn't help but be shocked in his heart.

Above the head is an almost endless high karst cave, showing one arch after another, and the stone pillars of various shapes hanging from the top of the cave are all formed by the rapid melting and solidification of high temperatures, which look particularly strange, covered with dense protrusions, and look like the whole cave is covered with drooping tumors.

The same is true of the road underfoot, bumpy and full of air holes.

However, the entire bottom of the mountain is covered with such natural caves, and there are traces left by magma activity everywhere, naturally leaving large and small pathways, just like the whole mountain has become a piece of cheese, and various holes have appeared on it. Ren Yi walked inside with no effort at all.

He walked along a path in front of him.

The cave was long, with twists and turns, and Ren Yi kept walking forward.

At first, he was excited about the myriad holes, because there was a good chance that one of them would lead in the right direction to the lab.

But as he walked, he was very distressed, and the whole mountain seemed to be a huge labyrinth. The caves are all naturally formed, and not all of them are interconnected. Sometimes the front is fine, and suddenly you walk into a dead end and have to go back and start over. However, the way back was very long, and he was afraid that he would go wrong and make all his previous efforts useless.

Sometimes the entrance to the cave suddenly becomes extremely narrow, or there is no place for people to settle underfoot, and Ren Yi has to find a way to get through.

Sometimes he was confronted with a dozen forks in the road that appeared in front of him, each of which had the potential to lead in a different direction.

Every time you set foot on the road, it's a bet.

Over time, he sometimes can't help but fall into self-doubt, whether he is really moving forward, what he is doing, and whether this behavior makes sense.

Ren Yi tried all kinds of methods, from being rigorous and full of energy, until he was exhausted, tired and hungry, and he began to walk wildly in the dark with brute force.

"It's really ......" Ren Yi didn't know how long he had walked, and when he looked back, it was dark, and countless holes appeared at the end, and he couldn't see how far he had walked.

Further on, it was still dark, and large and small caves were waiting for them quietly.

Whew......

The light of the flashlight suddenly dimmed, flickered violently a few times, and then went out. Ren Yi's eyes turned into darkness again.

Ren Yi pushed the button a few times, but there was no response at all, it should be out of power. Ren Yi cursed secretly and threw it on the ground.

He touched his backpack with his backhand, there was no food left, he sat down on a stone to rest, he didn't feel anything when he was concentrating just now, and now he sat down, and his whole body fell apart and ached.

Suddenly, a wave of irritability welled up in my heart.

"Isn't there any other way......

"There's no living creatures down here, and every cave is so long that the Yanshi won't need it."

"What else is there to do...... That's right!"

Ren Yi suddenly slapped his thigh excitedly, and "The Sky Round" burned, and "Lucky A" opened to the maximum.

"Honkai!" Ren Yi shouted.

"If there is no road, I will make a road!"

Gurrah, gurgle......

Suddenly, a heavy sound echoed throughout the mountain. It was as if countless rusty machines were hidden in the mountain, and after a long silence, they were running again.

Whoa...... Ren Yitou

The cavern above the top began to shake, and countless tiny fragments fell.

Ren Yi immediately stretched out a wall of qi to resist it.

As Ren Yi held it with both hands, the void writhed, and the sound around him became more and more dense.

Suddenly, the stone walls of the cave in front of them turned into shattered patches of color, which continued to push forward, covering more and more areas. Immediately after that, all the scattered fragments began to reassemble, and a large hole one person wide appeared out of thin air on the stone wall that was originally integrated!

Bang......

The stone chips collapsed, the smoke and dust were everywhere, and Ren Yi couldn't see anything clearly in front of him.

Boom......

The sound kept moving forward, echoing throughout the mountain. Everywhere I went, longitudinal caves were crossed, and holes appeared one after another on the stone wall in front of me, and I kept moving forward!

The sound of collapse and vibration is endless.

After a long time, the smoke cleared. A brand-new tunnel appeared in front of Ren Yi's eyes. As far as the eye can see, a large hole suddenly appears on the wall of the cave along the way!

Drain ......

A crisp and soft voice sounded, from far and near.

fell into Ren Yi's ears and was shocked!

"Is it the sound of flowing water?!"

He was overjoyed and finally found it! This is the source of the Lingjiang River!

Follow the groundwater and you'll find the lab in no time!

Whoa......

The current gradually became fierce and the sound became louder. Spreading through the newly opened cavity, it gradually widens and covers the ground below. Where the water flows, the surface of the rock suddenly darkens. The water flow is drawn by the rough bulges on the surface of the stone, creating small ripples.

The water spread under Ren Yi's feet, and he immediately felt a burst of coldness. Bending down and reaching out to pick up a handful of water, the crisp feeling immediately came to my face.

Ren Yi was overjoyed, stood up, and strode in the direction of the water.

Bang ......

His shoes kept tapping on the water, making a noise. Then he could barely remember what he was thinking, but he knew that with the support of a thought in his heart, time flew by, and crossing the tunnels through them seemed like a moment to him.

The water gradually rose from his ankles to his calves, and he changed from running to pressing forward to cut through the resistance.

"It should be getting closer to the source......" Ren Yi was secretly happy in his heart as he struggled to tread water. br>

The groundwater was cold and biting, gradually submerging Ren Yi's waist and chest...... Gradually, his feet began to lose track of the rocks underneath, and he could only stroke his arms and swim hard in the water. The water lapped against his face, and it was pitch black in the water, and the roof of the cave above was pitch black, and he didn't know which direction the river was going around.

I don't know how long it was, but suddenly, a strange sound came from the water in the black hole in front of me.

Zheng, Zheng......

It's a rhythmic, percussive metallic sound.

Metal?

Ren Yi was shocked, where did the metal come from in the depths of the earth?

It must be a legacy of the previous generation of humanity!

He immediately exerted all his strength and plunged headlong into the water.

Accustomed to the darkness and turbidity underwater, the scene in front of me gradually became clearer.

The image in front of him made him tremble, and his mind went blank - he saw a gate made of unknown metal towering in front of him!

The sound was the same wave of water that he brought with him as he paddled, and it kept banging on the door of the laboratory!

"Found it! Finally found it!" He felt like the blood was rushing backwards into his brain, and he was incoherent, almost crying with joy.

"How much time has it spent, how many lives have ......?"

"The last hope has finally been found!"

The door of the laboratory is full of knobs and valves, full of unknown technology. After years of erosion and erosion of groundwater, there is no rust and wear.

The gate was set on top of a white wall, and one corner of the wall had been shattered by an earthquake

A large hole, and the water poured in from the outside.

Ren Yi looked up and down, "Oh...... It turns out that the Adventist extract leaked out from here......

He swam slowly and gesturing, trying to get through the opening.

Boom, boom!

At this moment, an unusually loud crashing sound came from behind Ren Yi!

His blood seemed to freeze all at once.

"What's going on?" He looked back and looked around at the dark waterways.

This gave him a very bad premonition. That's where he swam over, and he can be sure of nothing. But now, what's going on with this shaking?

Crash......

The tremors were even more violent, and the waves crashed against the gate with a heart-pounding sound.

"The radiation fluctuations are unusually strong, and they are the Adventists." The goddess Themis said suddenly.

"The Descender?!" Ren Yi was shocked and suspicious, the one who suddenly came at this time?!

Rumble!

This time the shaking was more violent than ever. Ren Yi shrank his neck, and he could almost feel the tremor of the metal door above, as well as the fine fall of ash.

Ren Yi was taken aback, "It's not good, the lab is going to be dangerous!"

Hmmm-

At this moment, a bright red suddenly appeared on the entrance of the Yongdao cave in the distance.

In a flash, a vertical black line suddenly appeared on the red heavy sword, and Ren Yi was inexplicably behind him.

"Roar!" A deafening roar came.

"Wait, wait! Is it the "Dragonlord of Hell?" 」

The bright red round shape is actually its only remaining eye!

Whew-

A gust of wind came to his face, and the waves were surging, slapping towards Ren Yi!

Free to read.. com