After resting for more than half an hour, Situ Fang considered that there was not much to do underwater, so he reassigned the personnel and tasks, and he took 5 people into the water first, opened the tomb door and explored inside, and the rest of the people were replaced, and after 20 minutes, they went down on time to take over, alternately searching and advancing. After assigning the task, Situ Fang took 5 people to rearrange the equipment and go into the water.

In the repeated movements of the jack, the door of the tomb was finally opened a slit for people to enter and exit freely. Situ Fang looked in through the crack in the door with a searchlight, and after seeing that there was nothing abnormal, he gestured to the people behind him, and several people went in one by one. Behind the tomb door is a hand-carved tunnel, without steps, and the group walks slowly upstream along the bare stone ground. After a few minutes, another stone door appeared in front of it, and there seemed to be some words on the four door hairpins. When Situ Fang beckoned the camera to swim directly in front of the word, he found that the hexagonal door hairpin was engraved with the words "Rouge Blood Gate" in regular script.

Situ Fang didn't understand what these four words meant, so he gestured with his hand to Professor Chen, who was in front of the monitor, to help analyze it. Zheng Suo, who was sitting in front of the monitor with Professor Chen, saw another door suddenly appear, and his eyes were already widened, and after seeing the words "Rouge Blood Gate", he asked nervously: "Professor Chen, I'm afraid there is something behind this door, right?" ”

Professor Chen frowned and said: "These four words are obviously not kind, now we can't guess what it will be like inside, if the mechanism is soaked, let alone hundreds of years, even if it is decades, it will basically fail, so those are not what we are considering now, and now the biggest possibility is that I analyze what kind of beast-like underwater creatures." ”

"Then if that's the case, you should starve to death if you've been trapped inside for so many years, right?"

"That's what I said in theory, but I'm afraid there are other ways inside."

"What then? Just go back like that? ”

"Let's see what's inside the door first, and let them push it open."

After saying to Zheng Suo, Professor Chen said to Situ Fang through the wired intercom with a solemn expression: "This is likely to be some kind of fierce underwater beast, you should pay more attention to the inside, push the door open and be careful with every movement, if it doesn't work, you will retreat." ”

After Situ Fang nodded at the camera to show his understanding, he made a fist clenching gesture at a few people, and then led two people to step forward and try to push the door, but he didn't think that the door was not heavy, and it was easily pushed open. At the moment when the door opened, an extremely fast thing suddenly burst out of it, and swam away quickly from Situ Fang's side, and this scene suddenly happened underwater, so frightened that he quickly let go, and the door was closed again.

Because the camera had captured that thing very clearly just now, Professor Chen also saw this scene through the monitor, and he was also nervously startled. He hurriedly asked Situ Fang to pay attention to the unknown creature through the walkie-talkie, so that he could not enter behind the door for the time being, and stood by in place. After saying that, he played back the scene just now, and then he saw that the unknown creature was a big fish. He swallowed a breath and turned to Zheng Suo and said, "The moment this fish came out, compared it with Situ Fang's body, this fish is almost 70-80 cm long, and now I can't tell what kind of fish it is." ”

Zheng Suo sighed and said: "This fish is so special, we should not have this kind of fish, it should be an alien species." ”

Seeing that Zheng had no substantive suggestions, Professor Chen called Zhang Gong over loudly and said, "Hurry up and use your smart brain to think about what this thing is." ”

Zhang Gong looked at the picture on the monitor and tried to think about it for a while, but he couldn't think of what kind of fish it was, and he didn't have any impression of this fish in his mind, so he said solemnly: "Look at the body of this fish is similar to that of a silver carp, but its head is like a piranha, and I can't remember what it is." ”

Ma Kai, who had been accompanying Professor Chen, thought for a moment and seemed to understand what this was, so he interjected and said, "Professor, could this be a tiger fish?" This is a freshwater fish, and there are more than 100 species in our country. ”

"Oh, pony, tell me about the habits of this fish."

"This kind of fish is generally between one meter and one meter five, there are also three or four meters, of course, there are also a few centimeters in size, the weight also ranges from dozens of catties to hundreds of catties, mainly eat fish, shrimp and crabs, their scales are quite hard, the teeth are sharper, the bite force is also large, with the characteristics of fast speed and great strength, the key is that they are aggressive, bloodthirsty, the most famous of them is the piranha that Zhang Gong just said."

"Oh, so how do such fish usually survive?"

"They generally live in groups, more sensitive to water temperature, generally the water temperature is lower than 20 ° will appear sluggish, the specific number of degrees will cause them to die I don't remember, their reproductive ability is low, and environmental factors have a great impact on them, that is, artificial feeding, the survival rate is not very high, because they are ferocious by nature, there are almost no natural enemies underwater."

"So they're more dangerous?"

"Yes, they are extremely aggressive, daring to challenge creatures that are several times or even a hundred times larger than their size, but they seem to have obvious reverse phototaxis towards light."

"As long as there is a weakness, it will be easy to do, in this way, Zheng Suo, you quickly let the shore send some raw meat, and then prepare an iron cage to trap them."

After speaking, Professor Chen hurriedly said into the walkie-talkie: "Team Leader Situ, there is a tiger fish next to you, it is extremely aggressive, and bloodthirsty, piranhas belong to one of them, although they are very fierce, but afraid of light, a few of you try to squeeze together, use the light source in your hand to face it, and we will arrange people to go down for reinforcements in a while." ”

When Situ Fang heard the word piranha, he was frightened, and hurriedly followed Professor Chen's instructions to let the other five people all come close to him, and turned all the light sources in his hands outside, carefully watching the movement of the fish. The tiger fish that had just come out of it actually did not swim far, probably hungry, and had been wandering not far from Situ Fang's side, waiting for an opportunity to attack, but out of sensitivity to the searchlight line, it did not launch an attack for a long time.

After Situ Fang saw the scruples of this fish, he motioned for everyone to take out diving knives from their legs and prepare for defense, and then he turned off the headlamp and searchlight and put it at his feet, and when he took off the wired walkie-talkie again, he slowly broke away from the team and gradually approached the tiger fish. Maybe this tiger fish didn't know what kind of animal a person was at all, maybe he hadn't seen any large creatures at all, and when he saw Situ Fang coming, he instinctively retreated and stopped less than 3 meters away from Situ Fang, and the man and the fish confronted each other face to face, and no one attacked first.

After less than a minute of confrontation, the tiger fish finally attacked, swinging its tail fin and swimming quickly towards Situ Fang.