Hela, who already has detailed data on the entrance of the channel, directly uses the drone to send the external power supply to the ground, directly to the seat where the Roselle carrier is located.

With a longer endurance, the spidertron once again explored the depths of the passage labyrinth.

Luo Shen advanced underground little by little in the direction of the main peak of Qingshan.

According to the offline trajectory fitting, she is now nearly 1500m away from the surface, and the temperature inside the passage has risen to 364K, which is a severe test of the heat dissipation ability of the Spider Mecha.

Roselle entered a dead end again and again, either too narrow, or a deep pit leading to the ground, and the entire passage was also extending further underground.

It's a dormant magma channel, and if Roselle gets it right, she can even go straight to the mantle.

However, it may take Roselle to go dozens of kilometers deeper into the ground to reach it.

Roselle searched through the labyrinth of such a dark crypt until she turned a corner.

In front of me, it suddenly opened up.

The mech's regular lights couldn't even reach the end of the space, only the speed of light emitted by the laser rangefinder formed a tiny dot in the extreme distance.

According to the terrain feedback data detected by sound waves, Roselle is currently located in a huge underground space.

Based on the analysis of the rock samples around him and the current location, Roselle judged that this space should be one of the main crust fracture channels caused by volcanic magmatic activity.

The whole space is long and narrow, the ground presents a V-shaped bucket slope, and the depression is a magma volcanic stone that has been cooled and solidified not long ago.

With the exploration of this space, Roselle found that there are still a large number of small and medium-sized magma channels around and on the ground, and the straight-line distance between himself and the main peak of Qingshan is still 21 kilometers, and the underground volume range of the mountain calculated by the simulation is around this distance.

With such a huge volume of the main peak of Aoyama, it must be supported by a solid crustal layer, and the wall rock that Luo Shen is now seeing in the ground has become a super hard mineral of the same material as Aoyama, so it can be said that she has reached the underground rock mass of the main peak of Aoyama.

This vast underground space is not completely dim, some radioactive ores are sporadically fluorescent, and many crystal structures are shining with dazzling colored reflections under the light of the spider mecha.

In particular, the green laser beam emitted by the mecha and the laser terrain scanner swept over some of the exposed crystals from time to time when working, and the crystal structure was dispersed and refracted multiple lasers, hitting the surrounding rock walls.

For a while, this underground space, which has been silent since ancient times, was gorgeous because of the light brought by the spider mecha, lighting up this small world with colorful light and shadow art, which was beautiful and intoxicating.

"There's a lot of crystal minerals left in this space that magma has brought out of the ground, well, these things should be useful, I'll have to tell Hela to come over and test it specifically."

Natural crystals have extremely important applications in many precision optics devices, such as antimatter furnaces.

When the antimatter furnace deflects the high-energy light released by the annihilation reaction, it needs the assistance of these crystal optics, and if the natural crystals collected this time meet the requirements, the spare parts of the antimatter furnace optics of Sirius can be replenished.

These parts themselves have a predetermined service life under constant exposure to high-energy light and need to be replaced at the end of their predetermined lifespan.

During this time, the Sirius antimatter furnace was basically used by Hella for power supply, and the original set of deflection devices was basically close to the end of its life after the previous full sailing and the intermittent use of these months.

Only one set of spare components was left in reserve, and the rest were diverted by Hella and converted into parts for other equipment.

Roselle then released the drone, which flew back to the subsequent cable disconnection and loaded a small link terminal for data transmission.

During this time, the maze data detected by Roselle has been calculated by the AI host, and the physical model of the underground world has been generated, and the automatic units loaded with offline maps can perform flight missions in underground space without establishing communication.

A large number of Sirius's probes went underground, centered on the link terminals, radiating to the small passages that Roselle couldn't explore.

The flight parameters and intelligent processing procedures of these unmanned exploration vehicles have been adjusted accordingly by Hella in combination with the data of the underground world, and have relatively complete offline action intelligence, and serve as the data transmission task of the two-person carrier and the host at the same time.

In previous explorations, Roselle and Hela had met several times, and these magma passages were connected in all directions, so after she discharged one drone to upload the current underground space data to the host, she discharged another drone and went directly to Hela.

Both of them left corresponding data marks on the walls of the passage during this exploration, which can be recognized by the drone's visual system and guided by the drone to their current location.

It hasn't been long since she was separated from Hela, and Hela should be able to get here soon for a detailed inspection.

So Roselle carved some marks again along the way and continued to explore.

"When faced with this kind of multiple-choice question, human beings will rely on the so-called intuition, which is essentially a chaotic information processing mechanism made by the human brain for fuzzy data, but my current number of optical brain cores is insufficient to support such advanced AI functions."

Luo Shen once again stood in front of several channels, and at this time she missed the super chaotic information processing power of the ontology host, and each choice required a large amount of intelligent computing power of her carrier.

Therefore, Roselle later simply turned off the data processing function and chose to directly use the random number algorithm for channel selection.

"Passage 3?"

The random number gives 3, and the corresponding passage is a relatively narrow rock passage, and Luo Shen had to adjust the posture of the mecha, crawl sideways, and enter this passage vertically.

Thanks to the spider mecha's powerful multi-legged action mechanism, Roselle was able to pass normally in such a narrow passage.

As Roselle progresses, the passage seems to be a crack torn by ancient geological activity, straight and lengthy, and the rock walls on both sides appear relatively smooth and flat.

The overall size is also relatively uniform.

However, due to the stiffness of the rock wall, the loss of the multi-legged fixed conebrae was huge, and it was gradually damaged due to the strong collision with the hard rock, and the tip became dull and could not be smoothly chiseled into the rock mass.

Roselle stopped moving for a while and replaced the foot impact cone before he could continue to move forward.

According to the current trajectory records, the passage is almost in a straight line, close to the simulated range circle of the underground rock mass of the main peak of Aoyama, as evidenced by the dark rocks that are exactly the same as the mountain mass.

In Hela's analysis, these rocks are doped with a large amount of iron, titanium, manganese, chromium and other trace elements, almost forming a special alloy, which is extremely hard and dense.

Although the alluvial cone of the spidertron is modified by Hella from the spare armor of the starship, the purpose of the starship's armor itself is not to cope with the current rock-breaking mission, but only relies on its own excellent performance to perform this mission.

In the past, there was still some strength in the face of ordinary rock mass, but in the face of the task of Qingshan rock mass, which is similar to a high-hardness alloy, it seems to be strong and not enough.

After entering the underground rock mass of Qingshan, the loss of alluvial cone increased rapidly, and Roselle could only replace the last spare parts.

"Such a rock mass, whose performance indicators are far higher than other natural rock masses on the entire planet, is no wonder that it can stand for hundreds of thousands of years without any changes."

"It's just that the abnormal performance data of this rock mass is really an unnatural creation? Or is this the outer building material of the hidden base under the green mountain? ”

Then Roselle took samples to test the oxidation degree of the surrounding rock walls, and waited for the drone to return and upload these data to the host for comparison, so as to determine the generation age of this channel.

Luo Shen had a hunch that this passage should have been a long time ago when strong geological activity tore through the outer defensive rock mass of the underground base, and this crack still exists today, indicating that when this crack was generated, the base hidden in Qingshan may have ceased normal operation.

As long as the generation time of this passage is calculated, you can roughly know the lower limit of the existence time of the underground base, which will help Roselle to sort out the timeline in the future.

Not long after, the previously released drone rushed to follow the guidance signal left in advance and carried out the mission of data transmission again.

The main engine only has the oxidation test data of the Qingshan rock mass, and the approximate age of the channel generation can be estimated by comparing the sample data submitted.

Roselle requested multiple sets of alluvial cone supplies by the way, and sent back the current alluvial cone usage data to Little Hella for corresponding improvements.

"Is the hardness of the underground rock mass in Qingshan so high? The tensile strength is also very high, and the starship armor is really out of place. ”

Based on these data, the ship's HELLA main engine began to think about what kind of airframe fixing mechanism to choose.

Such a high-performance near-alloy rock mass, no matter what kind of hard-hitting excavation measures are used, even the most excellent mining drill bits in the federation can hardly withstand wear.

"Only nano-viscous adsorption devices can be used, and the modification plan is being generated, and the modification time is expected to be ...... 24 minutes. ”

Such a dense rock mass can just use a nanotechnology holder with strong adsorption, which is a device that comes with the original protective mecha, the principle is to use the strong deformation ability of special nanomaterials to fit the corresponding surface, and then use the air pressure difference to adsorb the device.

The high atmospheric pressure underground and the dense Qingshan rock mass are just right for the device.

The reason why it is not directly equipped is that there are still many loose and porous volcanic rock structures in the entrance to the dormant fire mountain, and fixed devices such as alluvial cones are more suitable for the volcanic rock mass of the time.

Hella immediately began to modify the device, and in just 20 minutes, a complete set of replacement parts was taken to the volcanic mine by the shuttle and provided to Roselle.

As for Hela's carrier, the one called Hela's Star, at the moment:

"Wow! That's a lot of high-quality pure crystals! What a big pure sapphire! My high-powered laser cannon has arrived! “

Hela Star cheered as she had previously marked the subterranean space, as she had just dug up a fifty-centimeter-square sapphire, and then used optical irradiation to determine the excellent crystal structure inside the sapphire ore, which meant that it was extremely pure, and could almost be used as a laser weapon-grade optical component.

Hela couldn't help but laugh when she looked at the large number of natural crystals that reflected dazzling rays of light in the sweeping lights throughout the space.

"A lot of laser cannons! I'm going to use the antimatter furnace to build a superlight cannon directly! ”

"Super Light Cannon!"

Hela had been aggrieved on the civilian ship Sirius for a long time, and she was once the main controller of the fleet base, not to mention how uncomfortable she was after losing her weapon system, as can be seen from the fact that she used an electromagnetic cannon to open a mine when she was fine.

Little Hela, is an artillery maniac.