Wang Hao and Li Shiren followed the direction indicated by the receiver all the way, at first the receiver also indicated a flashing red light, and then the red light was always on, and the two followed the receiver's instructions to a cave six or seven kilometers away from the tent, and the pointer of the receiver pointed to the cave.

"Looks like we're going into the cave. Li Shiren turned his head to Wang Hao beside him and said, "Bring the flashlight." ”

"Brought it. Wang Hao took out two flashlights from his bag and handed one to Li Shiren.

"Let's go. Li Shiren turned on the flashlight and walked in first, Wang Hao followed closely behind, and walked to the entrance of the cave, Li Shiren shone the entrance of the cave with a flashlight, and found that there was half a stone standing at the entrance of the cave, blocking most of the entrance.

"What's wrong?" Wang Hao asked when he saw Li Shiren standing at the entrance of the cave and didn't continue to go down.

"The entrance to this cave was blocked with stones. ”

"How do you know?"

"Look. Li Shiren shone a stone that had fallen to the ground with a flashlight, "Put this piece on it just to block the entrance to the cave." And you studied geology, so you can see that this stone and the stone on the rock wall of the mountain do not belong to the same kind. ”

"It's really not a species, but it can't be ruled out that there was some geological activity, and this stone was transported here, and then weathered and other effects to make this stone just set in this cave. ”

"Okay. Li Shiren took the lead in the cave with a flashlight, "There are definitely people who have been active here." Li Shiren's affirmative voice came out from inside, and Wang Hao also stepped into the cave.

"Look here. Li Shiren shone a flashlight on the wall of the cave, and the wall was very flat, "This look is the trace of artificial repair." ”

Wang Hao went up to take a look, "There are indeed traces of a pickaxe hit, but the traces are very shallow, and it is estimated that they are decades old, so it is very likely that the stone at the entrance of the cave is also man-made." ”

"Let's go deeper, and be sure to pay attention to the movement around us, I heard you describe that cyclops have a strong tendency to attack, and now they are in the hole, so you must pay attention. ”

"Okay. Wang Hao took the dagger out of his bag and held it in his hand, ready for a special situation that might happen at any time.

The cave is winding downward, the cave is very narrow and can only allow one person to pass through, the cave is unusually quiet, only the breathing sound of the two people echoes in the cave, in this dark and silent cave, just walking will feel abnormal depression, not to mention guarding against the cyclops that may attack them at any time, Wang Hao has the intention to tell a joke to liven up the atmosphere, but he is afraid that as soon as he opens his mouth, Li Shiren will turn around and give him a punch, from Li Shiren's somewhat flustered breathing, Wang Hao knows that his heart is not very calm.

Not long after walking, there was a sound of water droplets, and the sound of water droplets hitting the ground in this silent and dark cave was unusually infiltrating, Wang Haoyou tightened the dagger, the grid on the dagger was already a little shiny, and he could draw out a flame blade at any time.

The two of them walked towards the sound of water droplets, and after a few steps, they found that there was water under their feet, and continued walking, and the two of them looked up to see that there was a stalactite above their heads, and a drop of water slipped from the stalactite and hit the ground with a crisp sound.

Wang Hao touched the sweat on his head, took a deep breath and said: "It turned out to be a karst cave formed by karst landforms, generally speaking, karst landforms mostly appear in the humid areas of the south, and it is difficult to see them in the north, but if there is a collapse phenomenon, there may also be karst landforms. ”

"This place may not let them in. Li Shiren's voice suddenly came, Li Shiren had no interest in the karst landform, so he went there alone and walked around and walked to a relatively empty place.

"Why?"

"Just come and see. ”

"Okay, I'm here. ”

Wang Hao searched for the voice and found Li Shiren, "What's the matter? What did you find?"

"Look at these things. Li Shiren hit with a flashlight, and there were many tables, iron cabinets, and many machines in this empty space.

"What is this?"

"I don't think that nature can grow these things out of thin air. ”

"And what are those people doing here?"

"Let's go over and have a look. ”

Li Shiren walked forward before the flashlight, and suddenly hit the flashlight on the ground, and there were several broken wires lying on the ground, Li Shiren picked them up and looked at them.

"It's wires, and here through electricity. ”

"It's quite a project to get electricity here. ”

"Let's go, let's go over and see what kind of existence this is. ”

Wang Hao and Li Shiren came to the front of the machine, flashlights and looked at them one by one, the machine looked a little old, it was already covered with rust, most of the wooden tables were not corroded, where did they collapse, there were some glass slags on it, and occasionally a few could see that they were glass products before, Wang Hao reached out and picked up a half-broken test tube.

"What is this for?"

"Do the experiment. Li Shiren said, "I looked at most of these glass products, which are from the laboratory. ”

"So this is a laboratory hidden in the mountains?" Wang Hao said.

"That's right. ”

"It's really secretive, but what kind of experiment is it here. ”

"I can't see it, but from the characteristics of the tools here, it looks like a laboratory during World War II, and it should still be a relatively advanced laboratory at that time. ”

"World War II?"

"It was about that time. ”

"During World War II, there was only one force that could build such a laboratory in Baishan, a high-ranking official in the East Three. ”

"Kwantung Army. ”

"Then what are you building here for? It shouldn't be because you're afraid of an attack, it's probably not very convenient to get around. ”

"I don't think I'm afraid of an attack, maybe I'm doing some ulterior experiments. ”

"Ulterior experiments?"

"Well, some experiments that violate human rights, don't forget that there is a notorious bacteriological warfare unit in the Kwantung Army, and some things can no longer be done openly. ”

Wang Hao sniffed, "Have you ever smelled a strange smell?" ”

"Strange smell?" Li Shiren sniffed. "It's the smell of formalin. After a pause, Li Shiren sniffed again, "Over there." ”

Wang Hao followed Li Shiren, and the smell became stronger after taking two steps.

"Here it is. ”

Li Shiren struck with a flashlight, and four huge glass cylinders appeared in front of him, and the glass cylinders were now half broken, and the liquid inside spilled out, emitting a pungent smell.

Li Shiren squatted down and looked at it carefully.

"It hasn't been long since the four glass cylinders shattered, and formalin hasn't completely evaporated, and I guess there's something inside, like ......"

"Cyclops. Wang Hao said.