"start up!"

　　 An alien wearing a military uniform dropped the switch, and the sound of the wind whistling of the impeller rotating at high speed could be heard around.

　　Strongs of infrasound waves and ultrasonic waves are released, and the sound waves diffuse into the depths of the earth at a speed of three kilometers per second.

　　 But that is the initial velocity. Due to the complex and diverse underground environment, whether it is lava or various types of rock formations, the sound wave velocity will not remain stable at three kilometers per second, so there will be a fluctuating speed range.

　　 The aliens stared at the display nervously, waiting for the feedback from the sound waves.

　　 The information was quickly fed back into the machine, and the underground picture was presented in front of Commander Allen and other colonial powers.

　　 It is a spider-web-like structure that runs vertically through layers of stratum from deep underground. At the same time, there are many bifurcations that together build a huge and intricate underground world.

　　 "Hi, is it really..."

　　 Commander Allen first thought of what Marvin had said before, and suddenly felt his scalp numb, so he ordered.

　　 "Get ready for'Boom!'"

　　 "No, Commander, wait a minute, things are a bit wrong!"

It was Marvin's assistant who drank Alan. If it were usual, with the courage of the assistant, it would naturally be impossible to do this kind of thing, but now it is not usual. The completely mindless assistant can't take care of so much at all. A calm and fanatical state.

　　 The assistant urgently adjusted the parameters, and a larger underground picture was displayed. At the bottom of the underground network, there was a huge lava pool.

　　 "This underground network is a hollow structure. Because the bottom is connected to lava, the pressure and temperature accumulated in the underground pipeline are very high."

　　 "How tall is it?" Allen asked.

　　 "I did a rough calculation. It's about 1400 degrees. There is a deviation, but not too much. This temperature exceeds the limit of carbon-based organisms, so..."

　　 "So we are safe?"

　　 "It can be understood that way."

This answer made Allen and the others relieved. Except for some cobweb-like strata structures that look strange, there is no expected monster threat. Perhaps it is precisely because of such strata structures that they are prevented from coming from the ground. Threat.

　　 Allen thought for a while and asked.

　　 "How is this stratigraphic structure formed?"

"Commander, this should be the lava channel of the volcano. When the underground pressure accumulates too much, the weak parts in the stratum may be torn apart to form a channel like this. When the lava channel is close enough to the surface, it will form us. Well-known volcanic eruption."

　　 "It turned out to be like this."

　　 Allen showed a daze.

This is the end of the first underground detection of aliens, but this is not the last time. As the saying goes, you are not afraid of ten thousand, just in case. There is always an undefended gap in the ground. One'?

　　 After this, the colony will regularly conduct underground detection operations every five days and nights.

　　 So, did Huogu and their ‘steal-of-learning’ action declared bankruptcy? the answer is negative.

　　 The rhizomes are gone, but those eyes still exist in the hidden place. Huogu modified the design. The eye can be fed by breathing to obtain the trace moisture in the atmosphere combined with the substances near the hidden area.

　　 In fact, the aliens previously thought it was a lava channel. The intricate channel network was exactly the structure that Huogu left deliberately before the rhizome was evacuated.

　　 can mislead the aliens. As the so-called black under the lamp, Huogu can use this mentality to better hide the ‘eyes’ in the colonies.

Secondly, these channels deliberately made are as predicted. Because of the internal pressure and the bottom lava pool, the temperature will be very high. This temperature will affect the surface, but the effect will not be very large. The surface temperature will probably be three percentage points higher than the original. .

Aliens will not notice this temperature change, but the "eyes" will be affected. This slight temperature increase will not only not cause the air to dry, but can appropriately increase the air humidity and create a more suitable environment for the "eyes". living environment.

　　 The transmission of information is completely handed over to the life field for contact. The concealment is far better than that of radio. The only disadvantage is that there are too many transfers and the delay of information is very serious.

They are studying assiduously, and Huogu is not idle. While monitoring the situation in the alien colony, Huogu establishes a connection with the organisms in the wreckage of Xinggang, allowing them to search every corner of the wreckage to find out That is, the location information of the alien's home planet.

　　 Huogu knows how passive their situation is now. The enemy knows their location, but they don't know the enemy's location, and they don't even know when they are organizing a huge army.

　　 I am in the light, the enemy is in the dark!

Huogu is now basically certain that the enemy's home star is in this planetary system, because with the analysis of Starport’s remains, Huogu can basically infer the technical limits of aliens~lightnovelpub.net~ of aliens. Compared with the human civilization on the earth, science and technology are indeed a distance higher. After all, they have been able to make large-scale deep-space expeditions, and the people on the earth are still sending satellites to the sky. There are two or three kittens living on the International Space Station. National research institutes.

　　 However, their aerospace technology still does not seem to have a qualitative breakthrough, at least it is still working fluid navigation, and like Hogu, it uses primitive chemical fuels as propellants.

In addition, Huogu did not find anything similar to the hibernation cabin in the wreckage of Star Harbor. He found excrement measured by tons in a certain cabin. Based on the weight of the excrement, Huogu reversely derived the number of aliens, and then The conclusion drawn from the comparison of living spaces-aliens have never hibernated during their travels, and they have been eating and drinking Lazard throughout the journey.

　　 The result of the reverse argument is that aliens have a very short range, at least on a planetary scale.

But the problem now is that Huogu could not find the location of the enemy's home star. Through the observation of organisms in outer space, Huogu has identified seven planets in the environment of the planetary system, but without exception, there are none. The desolate world of creatures.

　　 Are they hiding?

Huogu can only think of this possibility. It has already launched life forms named "Explorers" to those discovered planets. However, due to the long distance between the planets, it will take at least a few years to know. specific situation.

　　 During this period, what Huogu can do is to accumulate technology as much as possible, and on the current basis, complete a qualitative leap in overall strength.

　　 But things are not always smooth sailing, a piece of information from the universe life body makes Huo Gu no longer calm.

　　 "Will, a large number of cluster individuals appear near the edge of the star."