Zhang Lan, who jumped off the lookout, went straight through the camp in the rear, and walked into the rift valley formed by the ancient river under the gaze of many busy goblins, and the craggy mountain walls on both sides of the river weighed on Zhang Lan's head like the shadow of the night.

"Escape, escape... Zhang Lan walked faster and faster, muttering meaninglessly, he didn't know how many times he had such an experience in the face of the helplessness of reality in the original world, after coming here, he thought that he would never be like this again, but the reality was that he ran away again, which made him extremely depressed, and finally simply ran on the river.

"Ahh Under the rush, he stepped into a deep hole, which was not large in diameter, but only more than one meter in diameter, but Zhang Lan leaned over and looked down, but he couldn't see the bottom, held on to the entrance of the hole, raised his head and looked forward, and found that the ancient river channel hundreds of meters wide was full of such deep holes.

"Holy... These can't be some swarm fights, right? Seeing these holes that make people feel like they are in a phobia of the city, reminds him of Hollywood horror films.

"If some kind of bug really comes out and strikes the goblins back and forth, they won't be finished?" Thinking of this, Zhang Lan chose a hole that looked stronger than the sturdiness and slowly went deeper to explore downward, his idea was to warn King Zhao and them if he found out anything.

Hanging the mustard seed generator on his chest step by step into the cave, Zhang Lan found that these cave walls were made of limestone, and there were vague traces of water erosion on them, obviously these holes were eroded by the river, which made him breathe a sigh of relief: "Fortunately, it's not a wormhole, it's just a cave, but the caves on this river are too dense, no wonder this big river is dry, the river is like a sieve, and it's hell if it doesn't dry up."

At this point, Zhang Lan thought about exiting the cave, but because of the place he was in and the distance he was in, the cave always remained at a diameter of about one meter. He thought that since it was a karst impact terrain here, the caves should be connected to each other, and he should be able to find a larger cave by climbing forward, and he would not delay things when he went out to find them at that time.

But as he went deeper, he gradually found many signs of artificial chiseling, and it was not until he climbed out of the small cave where he was and into a dissolution bucket washed out by a torrent, he had climbed more than 500 meters. Standing in this coffin that looks like an oval house, looking around, it is found that this bucket is also connected to other caves, and these caves are all maintained with a diameter of one meter, this discovery surprised Zhang Lan, the natural formation of the cave can never be so regular.

He approached a cave to observe, and found that this cave was different from the one he had just passed through, only there were traces of excavation in some places, this cave had been filled, and apparently the diameter of this cave was much larger than a meter, and someone had brought materials from elsewhere to process this cave, so that he had always maintained a diameter of one meter from the entrance.

Zhang Lan picked up a stone and smashed the filling places that were as hard as the natural ones, and he observed that there were no additives or binders in it, all of which were made from local materials. "Awesome... It is more superb than the modern construction technology on the earth," Zhang Lan couldn't help but be amazed by these rock fills.

The cave after the dissolution bucket is a complete natural creation, and some of them are big enough to pass through the train, and the small places are only enough for him to barely pass, but as long as the small caves connected to this are maintained at about one meter, the diameter is not too big or small, looking at those caves that can occasionally transmit light, shrouded in the swaying and changing pillars of light around Zhang Lan has the feeling of being in a dream.

"The pillar of light in front looks almost two meters away, it should be easy to walk" Zhang Lan finally found the largest pillar of light, Zhang Lan said to herself with joy in her heart, she didn't have to climb which mouse holes to go out Zhang Lan was still very happy in her heart, and then crawled towards the place where the pillar of light was.

"Holy... It's a hole again" Just when Zhang Lan was about to approach the pillar of light, and the surrounding space suddenly became clear, he just took the first step and felt that his feet were empty, and then his whole body was planted downward, because when he entered the range of the pillar of light, the dark and dark eyes could only see at this moment, and he found himself falling rapidly in a vertical hole with a diameter of four or five meters.

"I didn't even notice such a big hole, it's really not wronged to die" Zhang Lan complained to herself in her heart, while trying to find a way to escape, the wind was whistling in her ears, obviously there was an upsurge of flowing air below, and in her eagerness, Zhang Lan tried to combine with the blue light with her spirit, but the divine mind never contacted the blue light.

"How deep is this hole?" Just a moment in the world Zhang Lan felt that he had dropped nearly two hundred meters, at this moment he had no idea of luck, if this hole was only a few tens of meters deep, Zhang Lan believed that with his strong physical strength and super recovery ability, he should be able to barely save his life, and now this height smashed at the bottom of the cave is absolutely lifeless.

Zhang Lan was very depressed in his heart, after confirming that he had come to another world, Zhang Lan thought about many ways to die, but the final outcome of falling to death was not in his alternate list, at this moment he really wanted to cry without tears, and fell a distance of nearly two hundred meters, Zhang Lan suddenly heard a faint "boom" sound below.

"What sound?" Zhang Lan struggled to recall all the sounds she had heard in her mind.

"The sound of the river!" Two seconds later, the sound overlapped with the sound he heard when he was playing by the Yellow River in his childhood, and after determining the source of the sound, Zhang Lan quickly opened his arms in the air to adjust his lying posture to erect, and in the process of adjusting his posture, the rumbling sound became louder and louder, and in the end it was deafening, and the concentrating effect of the cave almost shattered his internal organs.

Zhang Lan worked hard to run the dantian qi mass, and the qi ran through the tendons and veins to protect the whole body before barely holding on. After falling for more than 300 meters, there was a sudden emptiness around his body, and a thick mist enveloped him, although the sound of the river rushing was still the same, but the concussive sound wave that beat the internal organs was weakened, and Zhang Lan knew that she had finally fallen out of the damn cave.

He took a big breath of air, but after that, he fell more than fifty meters before he felt the impact under his feet like a train crushing, this huge force instantly broke his two leg bones, and before the pain could be transmitted to his brain, he felt a black in front of him, and the roar in his ears almost smashed his brain, and instantly made him fall into a coma.

It didn't take long for the biting cold to wake him up from his stupor, and he tried to open his eyes, only to find that there was still darkness around him, with only a few fireflies flickering at the end of his vision.

A wave of waves came in the dark, and the cold and biting river flooded him and made him sober up, at this time all kinds of pain were transmitted from all parts of the body to the brain, Zhang Lan tried to move his body, and found that although the pain was abnormal everywhere, he basically obeyed the call, which made him give birth to the joy of escaping from death, you must know that he fell vertically to a height of nearly 800 meters, which is equivalent to jumping from the world's tallest building "Burj Khalifa" and surviving, absolutely breaking the record.

Driven by the waves, his body kept turning over in the water and choked on a few mouthfuls of water, and after all his consciousness was restored to take over the control of his body, he found that the reason why he had not been drowned in the coma was completely because the mustard seed generator in his chest saved his life, this "holy suitcase" floated on the surface of the water like an ordinary box, and even let him not be hit by the waves into the water.

Then he swam with his hands and feet in the direction of the loudest wave, for the sound of the wave was so strong that it was not far from the bank, and it was not long before he reached the shore. With his great eyesight and the faint glow, he found that it was a river bay, where the great river had turned and caused a vortex to form in this bend before it had stopped him, otherwise he would not have known how far he would have drifted.

Climbing the bank of the river formed by limestone rubble, he sat down against a large rock, and found that this underground river was hundreds of meters wide. The big river on the ground turned out to run to this underground," looking at the big river in front of him, Zhang Lan couldn't help but exclaim.

"Well, the arms are intact, the chest and abdomen are not fractured, how can this leg grow like this" Zhang Lan began to check his body under the faint light of the firefly, and when he saw his legs, he found that the calf bones of his legs had been broken, and the skin and flesh were pinned to the knees like the anti-joints of the lizard man, if he could still stand up at this time, he might be recognized by others as a small lizard man. If an ordinary person broke a bone like this, he would bleed and died, but because of Zhang Lan's super resilience, he actually changed the structure of his leg bones.

"I have to correct it, otherwise I won't be able to walk" Touching the leg bones that leaked out of her calf, Zhang Lan suppressed her desire to vomit and thought of a solution, thinking about it, the only way to think about it was to break the crooked bones and connect them in the right position. The thought of the great pain made his heart feel weak, but he couldn't do it, so he looked around for a stone shaped like an axe and a few thick branches that had been washed up by the river, and after doing all this, he raised the stone in his hand and aimed at the misaligned bone in his calf, took a few deep breaths, and slammed his teeth down.

"Ah。。。。。h A shrill scream almost drowned out the sound of the waves of the underground river and echoed through the wide space of the underground river. Because of the mental preparation, Zhang Lan did not faint in pain, he bit the bleeding gums, tore a piece of clothing prepared by King Zhao in the mustard seed generator into strips of cloth, corrected and fixed the leg bones with branches, and then stared at the other leg and repeated the above work again.

After resting for a while, eating something to regain his strength, about half an hour, Zhang Lan felt that the broken bone was not as painful as it was at the beginning, but at this moment he had to find a way to move, because this underground river was about to rise in tide, and at this moment, where he was, there were already waves rolled up to his feet.