In this way, after a few more days, the feelings of Chu Chen and the mermaid queen began to become clear.

　　Clear sensing, which means that it’s almost here!

　　 Chu Chen lifted his spirits and swam straight in the direction of induction.

　　 In this way, after swimming out for more than an hour, Chu Chen felt once again that the location of the mermaid queen should be underwater!

　　"It should be below ｀｀."

　　 Chu Chen thought.

　　 Thinking of this, Chu Chen plunged into the sea water and started to move towards the bottom of the sea.

　　.

　　 The submarine volcano where the lava prison of the Mermaid Queen is located is different from the submarine volcano in the area where the No. 4 Industrial Island is located.

　　 The submarine volcano here will not erupt/erupt on a large scale.

　　 From the surface of the sea, there is no volcano underneath.

　　 Moreover, the sea people did not set up guards on the sea.

　　 However, as Chu Chen dived, he began to discover that a dense school of fish appeared in the sea.

　　 When he discovered this school of fish, without saying a word, Chu Chen directly activated the stealth ability shared by the ancient octopus.

　　 entered a state of invisibility.

　　 The mermaid queen told Chu Chen about this kind of fish. It was a kind of fish raised by the sea people, and it was quite alert.

　　 Once they discovered Chu Chen, then the seamen with special abilities in the prison would be able to discover Chu Chen.

　　.

　　 Now, the invisibility duration of the ancient octopus is much longer than before.

After 　　 shared, Chu Chen can stay invisible as long as he doesn't move in the sea.

　　 If you move, it lasts up to two hours at a time.

　　 Then it will take a while before it can be activated.

　　 Two hours, in Chu Chen's view, is enough.

　　...................................

　　 In this way, Chu Chen continued to dive.

　　 There are a lot of that kind of fish in the sea. They are in groups, and they will besiege the fish that break into this area and turn those fish into their food.

　　 Chu Chen avoided them and continued to dive.

　　 In this way, after diving for more than 3,000 meters, Chu Chen found a faint light under the sea.

"arrive."

　　 Chu Chen whispered.

　　 That should be the red light from the crater of the submarine volcano.

　　 He continued to swim there.

　　 swam a few hundred meters, the sea has some temperature.

　　 can already see the crater.

　　 is just below two hundred meters.

However, the crater is surrounded by high walls. These walls are tens of meters high. They surround the submarine crater with a diameter of several hundred meters. On the top of the wall, from the four corners of the wall , Each has an arched beam several hundred meters long.

　　 Two beams, in a cross shape, rest on the four corners of the wall.

　　 In addition, in the middle of each wall, there is also a beam.

　　 has a total of four beams, forming a "m" shape.

　　 On these arched beams, at intervals, there are some dark chains hanging straight down into the crater below.

　　..............................

　　 "The ones hanging under these chains are the cells, right?"

　　 Chu Chen looked at those chains and thought.

　　 The mermaid queen told him about these chains.

　　 The length of each chain has reached thousands of meters.

　　They are made of submarine gold, each chain is quite thick, and the thickness is used to achieve the effect of heat insulation.

　　 In the middle of them, there is a pipe wrapped with sea water circulating.

　　The temperature of the volcanic magma in the seabed is higher as it goes down.

　　 In other words, these cells are hundreds of meters below the magma lake!

　　Furthermore, these chains can still be completely put down. In other words, if someone comes to violently rob the prison, the guards of the sea people can choose to loosen the chain completely and let the cell completely fall into the magma lake.

　　.

　　 After looking at the middle area, Chu Chen looked at the high walls.

　　 At the top of the high wall, there is a row of buildings. Among those buildings, the people living in it should be the Searen.

　　Chu Chen hasn't seen a seaman yet, so he doesn't know how it is different from humans.

　　............................

　　 Above the underwater prison, there are the dense fishes raised by sea people.

　　This kind of statement is also a means of vigilance and reconnaissance frequently used by sea people.

　　 According to the mermaid queen, these fish have a very rare feature-that is, shared vision.

　　 The fish born from the same batch of eggs, as long as the distance between them is not more than 100 kilometers, then they can have the field of vision of other fish in the school.

　　 Then, a small number of seamen with special abilities can catch a fish from each school and put it next to them, and then they can get the vision of all the fish from that fish!

　　 This is also the reason why this lava prison is so difficult to break in.

　　 Although the sea people do not have human technology, there are still a lot of them. In addition, they are the native creatures of the island world and have special abilities. There are still a lot of sea people.

　　.

　　 In addition, if it were not for the telepathy of Chu Chen and the Mermaid Queen, in the endless sea, who would have known that there would be such a lava prison on this seabed?

　　 If it weren't for the role of remote sensing, Chu Chen would not have been able to find it for hundreds of thousands of years.

　　............................

　　 "As long as you avoid these fish, you should be fine."

　　 Chu Chen groaned, then swam down silently.

He shared the superb water quality from the killer whale, and shared the ability of the Sea Whisperer from the mermaid patriarch Irina. Now Chu Chen can be said to be the darling of the sea, swimming in the sea quietly. .

　　 In this way, Chu Chen soon came to the top of the underwater prison, and he could already see the light and some figures in those buildings.

　　 Around the territory, you can also see sea people swimming.

　　 These figures seem to be similar to human figures, but there must be some differences in details.

　　.

　　 Chu Chen didn't observe these seamen too much. The mission of this trip was to rescue the mermaid patriarch.

　　 He dived directly along the high wall.

　　 In this area, the temperature of the seawater is already quite high, almost 70 or 80 degrees Celsius. Chu Chen can withstand this temperature by virtue of its ability to control water.

　　 further down, the temperature will reach 100 degrees.

　　 But 100 degrees is not the end. The sea water at 100 degrees does not boil at all. The reason is simple. The water pressure here is too high.

　　 You need to know that a water pressure of 10 meters is equivalent to one atmosphere on the earth and the stars.

　　 The depth of the sea here exceeds three kilometers, which is equivalent to hundreds of atmospheres.

　　Under such terrible pressure, even if the temperature of the seawater exceeds a thousand degrees... it will not boil!

　　 In fact, the seawater close to submarine volcanoes can no longer be regarded as "¨ˇwater", but a supercritical fluid, which does not boil, but the temperature is extremely high.

　　In other words, further down, the seawater temperature there can reach several hundred degrees.

　　 No wonder this high wall has to be repaired a hundred meters high.

The sea water in 　　 seems to be circulating all the time.

　　.

　　 Therefore, Chu Chen must wear armor here.

　　.

　　 Chu Chen swam along the high wall, observing the situation above.

　　 After observing for a period of time, Chu Chen found that the sea people's main attention was above and around the prison.

　　 Inside the high wall, on the contrary, there are no sea people paying attention, and there are not many fish.

　　 After all, the temperature is so high.

　　 If someone else wants to rob the prison, it must be a forceful attack to raise the cell.

　　 No one would use Chu Chen's method to directly enter the lava!

　　 is too difficult.

　　 If there was no girl Eve this time, and there was no alloy made by the girl Eve that could isolate the temperature well, Chu Chen's method would not work at all.

　　 In addition, this (good money) submarine prison has not been attacked by any marine creatures for more than 100 years. Therefore, although there are many seamen on guard here, these seamen are actually a little lax.

　　.

　　 After observing this way for some time, Chu Chen came directly under a beam and took out the armor with the help of the beam.

　　 This set of armor is not complicated to wear, and Chu Chen can complete it by himself.

　　 After a few minutes, Chu Chen put on the armor.

　　 But no seaman has found him. After all, seamen usually don't have anyone, so it's okay to stare at the magma below.

　　Who would enter the magma without life?

　　 Their defensive center of gravity is indeed around, not below.

　　.........................

After 　　 was put on, Chu Chen used mental energy to check the tightness of the seal.

　　 After checking, Chu Chen activated his stealth ability again.

　　There is armor, and the stealth ability is affected to a certain extent. When it sinks, it will cause some movement of the water.

　　 But it is not a big problem, because there are many bubbles in the high wall.

　　Chu Chen slowly descended.

　　 More than a minute later, Chu Chen came to the submarine volcanic crater. Although it was a less active volcano, some magma would still be spewed out from time to time.

　　 Then, Chu Chen went directly into the magma.

　　 After having the experience of the volcano under No. 4 Industrial Island, this time Chu Chen entered the magma and became more proficient.

　　.......................................

PS: Let’s just talk about it. The author will have to go out in the next three to four days. In these three to four days, 3 chapters will be updated every day, each chapter is about 3,000 words. Well, the number of words in each chapter is slightly less, that's it La, it will be back to normal after coming back. .

Chapter 165:

　　 The eyes of Chu Chen's armor are made of a different alloy. They are transparent and can be seen outside.

　　Of course, in the magma, even if it is transparent, it is of little significance.