After entering the entrance of the cave, it is very open, a huge rock leads to the front, this is probably a hidden river under Jiulonggang, according to the research of geologists, it is tentatively inferred that the rock layer under Jiulonggang Mountain is almost all mineral water.

I am afraid that it is difficult to swim against the water through a long channel, so there is a miniature submarine dived above, said to be a submarine, but an unmanned underwater intelligent diving device, in front of the diving device, there are two independent diving detection devices, controlled by the ground, and the larger diving device is actually for everyone to provide kinetic energy, there is a rope behind, everyone holds the rope in one hand, and then slowly swims forward with the diving device.

There is an underwater lighting device in front of the diving device, after swimming a certain distance, the front of the passage suddenly becomes deeper, and the illumination of the lighting equipment also decreases, which should swim to the end of the channel, and after the end, the underwater space should become more open, so that the light is more dispersed, so the illumination decreases.

I swam to the front, the diving gear stopped, and sure enough, the long passage was like a hole in the rock wall, and inside was a huge space, I can't tell how big it was, in short, it was like diving into the ocean.

The two small unmanned submersibles paused, then separated from each other and quickly dived inside, and after a while, news came from above: The space is very large, and the bottom of Jiulonggang is empty, but there seems to be something in the deepest depth, that is, under the water.

The big submersible heads down and starts to move forward, and we follow the submersible downward, the depth getting deeper and deeper, and the pressure of the water gradually increases. It is like a huge deep well around, it is circular, the wall of the well is extremely smooth, it is not naturally formed at first glance, and the ancient people had such an ability to carve such a huge deep well in the water below the mountain? Did they use divine power?

With the help of the submersible, we were already approaching the bottom of the water, and at this moment, we saw that around the wall of the well, there were nine circular openings, which were like the openings when we came in just now, and judging by the current of the water, the nine openings were constantly gushing out.

I understood that there was no water in the shaft itself, but that the four walls were cut and nine round holes were cut out, and that the water flowed from these holes, so that the nine holes must be connected to the underground springs.

Miss Suppression swam to the edge of a cave and let the submersible's lights shine through, and when the light shone into the hole, Miss Depression leaned back sharply, as if something had startled him, and Kuroko swam over and drew his dagger, and seemed to be frightened as he approached the mouth of the cave.

I looked at the mustache, and swam over with both feet, Nima, there was a huge python coiled in the middle of the hole, and the python was motionless, as if it was dead, impossible, the python died in the water and soaked it early, but why was it intact.

I looked at the other holes, and in the second hole, I found that the giant toad had been crouching there, motionless like a python, as if it was hibernating in the water, and the water gushed out of the hole, but it didn't wash the toad out.

At the entrance of the third cave, there was a beast like a man, curled up there, its head buried between its arms, but its head was not a human head, but a huge pointed conical head, and behind the head, there were long things, like a pig's tail, and like a particularly thin fish tail, these soft strips of thin bands, floating with the current, I found that the crest of the orc's feet was very large, like the flippers of an underwater creature, and it curled up as if it were asleep.

I shook my head at the mustache, then pointed to the hole and gestured to my head.

At the fourth hole was a large tortoise, but it had a head similar to a man's beak, with no hair on the top of the head, slightly concave, and a hard shell on its back, covered with green scales. I think I've seen it in some kind of book, it looks like a kappa, a reptile that resembles a human.

At the fifth hole was a disc-shaped monster, but it was like the sun, and there were dozens of claws around the disc, two of which had a pig-like head between them, and on its disc-shaped body were four closed eyes, each with a large pointed ear a centimeter above each eye.

The other caves were all viewed by the mustache and the sunspot, and some of them looked like ancient beasts, but some of them I had never seen in a single book.

Miss Suppression motioned to go down to the water to see the situation, and we continued to dive with the submersible, which first fell to the rocks at the bottom of the water, and by the time we reached the bottom, the water had obviously no upward thrust.

What is amazing is that the bottom of the water is a circular carved pattern, there is a protruding ball stone in the middle of the pattern, the whole bottom of the well, is the rock layer, the rock layer is above those carved patterns, the lines of the pattern are very thick, Miss Depression looked at me, I shook my head and said that I didn't understand anything.

We have reached the bottom of the deep well, but we have not found anything, could it be that the passage to the tomb of Shennong is in those nine water holes? Navigating through the nine water holes may require waking up the nine monsters, all of whom are still dead.

I walked to the center of the bottom of the well, squatted down to observe the raised stone, I used my hands to grind off the mud on the stone, there was a small hole in the stone, I guessed, the rock under our feet, in fact, is just a disc-shaped stone door, open this stone door, the water will fall instantly, I don't know what is behind the door, if it is empty, we will fall down with the water, once it is an abyss, we will die, but according to the eight-character nonsense, the tomb of Shennong's is built on the boulder, The boulder grows in the water of the underground lake, so there is a space underneath, and in the lower part of the space is the underground lake.

I gestured to Miss Suppression, meaning that this could be a door, but open the door and we'll fall!

Miss Narration responded to me with a gesture in the water, asking me to open the stone door, and the person standing next to her also gestured for me to open the stone door immediately, and I looked at the submersible, and if it fell, I immediately grabbed the rope of the submersible, because the rope of the submarine was still attached to the ground, so we would be dragged by the rope.

I gestured for them all to grab the rope of the submersible, the submarine fell on the rock, I grabbed the rope with one hand and squatted down, if the legend is true, then the cow bone engraved with the heavenly charm on my neck is the key to open this stone door, I can only try.

The Heavenly Charm was already in the palm of my hand, and I inserted the cow bone into the stone hole, but there was no response!

Just when I wanted to stand up, the rock under my feet trembled, and there was water overflowing from the stone hole, and then a few bubbles appeared, and the bubbles bubbled more and more, not only did the bubbles come out of the stone hole, but even a straight line in the middle of the rock was all bubbling, and after that, the rock separated, revealing a gap, and the gap became bigger and bigger, and after the two rocks separated, the water began to flow in. There should be a water flow mechanism, the cow bone touches the mechanism, the water enters the mechanism, the action of the water flow pushes the mechanism to continue to move, and then the two closed rocks are separated.

The gap was wide enough to accommodate a person to drill through, and the water flowed inward, and when the stone gate all faded, the huge water began to slide down against the submersible, and sure enough, there was a large space below, and an underground lake appeared below, and there were many stone pillars growing in the lake, some large and some small.

The water in the shaft is affected by gravity, like a falling waterfall, and suddenly flows downward, we are washed down by the water, the submersible flies down with a rope, and the people above observe us falling rapidly through the camera equipment of the small submersible, and the engineer asks Mr. Zhou for instructions to immediately drop the stuck rope, but Mr. Zhou makes a stop action, let the rope continue to fall, and says: The tomb of the king of the earth is below!

We followed the submersible and fell into the underground lake with a pop, and I plunged headlong into the lake, and the moment I fell into the lake, I seemed to see many shadows under the water, but before I could observe it, I immediately surfaced, and I saw Mulberry also surface, and the horse swam to her side.

What about the mustache? How did he not surface. I was looking around for a mustache with my head exposed, and suddenly something was pulling my leg under the water, I thought the underwater monster was dragging me, so I hurriedly kicked my leg and dived into the water, a person grabbed my calf with his hand, I was about to kick him hard, but I found that it was a mustache, and he was dragging me while fingering the other end.