Find the general direction and the next thing will be easier. .

Li Yao, Long Yangjun, Li Jialing plus two newly born "information life", of course, two little guys' toys, those super-miniature puppets as small as ants and wild bee-shaped puppets that can fly freely. They set off immediately and explored along the existing cracks and mines in the direction of special ripples.

Every three hours ahead, stop and start the "vibration ripple scanning and grabbing magic weapon" again to reposition the source of the vibration.

Sure enough, the ripples are becoming stronger and clearer, which means that their direction is not wrong, and the direction and height can be further fine-tuned according to the series of the ripples.

Gradually, they left the towns where ordinary people lived underground. Those areas rich in psychic energy and life were already far away, and they really entered the absolute darkness of "no sun, dead silence".

This is a forbidden zone for life that even savages underground have no life. The tunnels and mines are gradually narrowing and cut off, with only strange natural cracks that can be barely passed through.

In many places, the giant god weapons even need to use them to open the way to find new cracks.

If it weren't for the two top experts Li Yao and Long Yangjun, who were at the forefront and consuming spiritual energy at all costs, and rushing around so recklessly, he would never find the right path and would be trapped in the rock formation.

In this way, they sneaked in the darkness with breath for more than twenty-four hours, and finally saw a glimmer of light.

After using bone shrinkage, I narrowed my body to the limit. After having difficulty drilling through a natural crack that was not much thicker than a poisonous snake, I suddenly realized that it was an artificial tunnel with a diameter of at least thirty or fifty meters. I don’t know where the black waste leads to.

The two sides of the tunnel are wide and narrow at the top and bottom, and are oval-shaped. The traces of artificial excavation can be clearly seen in the surrounding rock walls, but after erosion over millions of years, they gradually become smoother, like a layer of hard slurry shell.

“This tunnel was not dug now.”

Li Yao analyzed the height at this moment through a barometer, "We have dropped to more than 24,000 meters underground. In many places, it is the dividing line between the crust and the mantle. I didn't expect that at such a deep distance, there is such a huge artificial tunnel.

"You come and see the traces on the rock walls on both sides of the tunnel. It is best to reach out and feel the pattern with subtle spirals. It should be traces of some kind of shield machine or giant drill bit. Judging from the size of the traces, it is not very similar to the magic weapon of the Pangu or Nuwa clan, which is too small in size."

Long Yangjun was the first to understand Li Yao’s meaning.

Most of the thirteen members of the Pangu Civilization Alliance are huge carbon-based lives, and they are often taller than 20 meters or even higher. They are giants standing tall.

Therefore, if it is a shield machine, excavator, crusher, etc. of the Pangu or Nuwa tribe, it should be larger in size, so the size of the traces excavated should be much wider.

In many ancient ruins, including Kunlun Secret Realm, similar magic weapons remains from the Pangu tribe and Nuwa tribe have been unearthed, so Li Yao and Long Yangjun are very familiar with the sizes of similar magic weapons.

"Do you suspect that this artificial tunnel was dug by humans?"

Long Yangjun thought for a while and said, "It was the Emperor or the Son of Blood God from ten thousand years ago!"

"If your guess is correct, it's very likely."

Li Yao nodded and said, "Suppose the army of the Emperor and the Blood God Son are really looking for something 'thing' underground in the Pole Star, we naturally have to dig a spacious enough artificial tunnel to transport a large number of troops and even devastating magic weapons in. Since the Black Star Emperor Wu Yingqi knew this secret, of course there is no need to foolishly build a tunnel of his own. As long as we find the tunnel of the Emperor or the Blood God Son back then, we can easily reach the near of the 'target'."

“It makes sense.”

Long Yangjun released his divine thoughts and explored for a moment, took everyone to the middle of the tunnel, pointed to the indentation on the ground and said, "Come and touch this."

Li Yao knelt on one knee, carefully rubbed the uneven ground, and touched countless jagged bulges.

"It's a track, a very, very wide heavy track, and a six-strip to the group is some kind of track-type transport with a rather amazing load."

Li Yao said, "If it were ten thousand years ago, the emperor or the son of the Blood God crushed it, the traces would have been eroded by time long ago, and they would never be so 'fresh'. The traces of these tracks were left after repeated crushing within the past year and a half!"

Now, they can finally make sure that their judgment is correct.

As for the height of the tunnel, the height of the tunnel is only thirty or fifty meters, while the diameter of the working surface of the super giant shield machine is hundreds of meters. Such an obvious "contradiction" is not a big problem.

The seemingly powerful steel monster like the super giant shield machine is extremely fragile on the other hand. The ultra-high-speed operation time is calculated in "seconds". If it is not necessary, one second less can be activated.

The super giant shield machine is broken down into thousands or even tens of thousands of components and magic weapon units, transported to the work site through crawler-type load-loaded transportation, and then combined on-site to use this is the most efficient method.

Knowing that this artificial tunnel must lead to the "trump card" of the Black Star Emperor Wu Yingqi, then, after continuing to sneak with breath for more than two hours, it was not surprising that he heard a vague roar like a hundred eight thousand waterfalls coming from the front, and he saw a group of guards armed to his teeth.

Not to mention Li Yao and Long Yangjun, even Li Jialing, who had just completed a course of strengthening, could easily let these imperial guards go.

But there is no need to alert the enemy like this, so they chose a safer way.

Everyone was dormant in the dark corner of the artificial tunnel. Li Yao used the "Fight Long" to drill a small hole as thick as a finger on the rock wall, and went straight to the hot work site in front of him. Then Li Xiaoming and Li Wenwen manipulated a large number of mechanical ants and climbed in along the small hole, transmitting the scanned images and ripple back, and everyone could share the vision of these mechanical ants.

The scenes of the teleportation of the Xiaolong and the mechanical ants made their breathing stagnate and they almost didn't exclaim.

The underground space at the end of the artificial tunnel is too huge, too vast, too "universal".

Li Yao has seen countless huge underground spaces, including initially underground in the Skeleton Dragon Star, and even a silver "ocean".

But all the underground spaces combined are not as shocking as the void in front of you.

The diameter and height of this underground space are at least ten times that of the large iron factory, and can accommodate dozens of underground towns, just like a miniature black hole embedded in the interior of the Pole Star, constantly swallowing up all the surrounding rock formations.

Looking around, there are spiral downward steps and platforms all around, and there are huge caves that are opened horizontally on the rock wall, like some kind of honeycomb and ant cave with complex structures.

Some "ant holes" are barracks of the Imperial Army. Next to the barracks are also equipped with crystal magnetic cannon positions and various three-dimensional defense systems, which are described in four words as "water cannot be poured in"; other "hive" are factories that assemble and repair shield machines, and are all of them are quite large.

Li Yao controlled the Xiaolong and carefully adjusted the direction, heading downward. He saw that on the platform close to the bottom of the huge hole, there were indeed several super giant shield machines that were digging and smashing continuously. There were hundreds of large, medium and small shield machines around them. Their contrasting size was like a giant beast taking his children out to hunt.

With these shield machines alone, it is impossible to open up such a vast underground space in just one or two years!

Li Yao's thoughts were so loud that he burst into laughter, laughing at himself as he was so stupid that he was so "universe" space was not dug out by the Black Star Emperor Wu Yingqi alone. As Long Yangjun said, it was dug out by the emperor or the son of the Blood God. Wu Yingqi just inherited the career of his ancestors and continued to dig.

boom!

Boom! Boom!

Boom boom boom boom boom!

At this moment, they heard a very regular explosion sound from the depths of the underground space.

"Are you setting off fire and smashing the rock formation?"

Long Yangjun asked Li Yao in a low voice.

"no."

Li Yao pressed his ears and cheeks against the rock wall, felt it carefully for a moment, and shook his head and said, "It is the ripples and feedback released after the crystal bomb exploded to scan the deeper structure underground."

This method of using corrugated feedback for holographic scanning is a conventional method of underground exploration.

Judging from the layout of the corrugated launch source, the cultivator first used a super giant shield machine to dig a relatively shallow tunnel in all directions of the ground, spreading radially, and then installed a group of special crystal bombs at the end of each tunnel to conduct a "spreading a net in the sky" type of scanning.

In other words, no matter what Wu Yingqi asked them to look for, there was no breakthrough yet, just shooting guns in a daze.

Li Yao breathed a sigh of relief when he discovered this.

"At least a whole group of imperial guards have been deployed here, and judging from the continuous construction of new barracks and barriers, the scale of the garrison will continue to expand."

Li Yao narrowed his eyes and carefully analyzed the ultra-clear image teleported back by the Xiaolong. "No wonder Li Linghai attaches so much importance to the Imperial Guard. He has long been in love with the Imperial Guard and secretly hooked up. I just said that most Imperial Guards have no combat power. On the battlefield, they are shrimp soldiers and crab generals who are about to collapse. Even if they are loyal, they are not very useful to recruit them.

"So it turns out that Li Linghai or Wu Yingqi had no intention of letting the Imperial Guards go to the battlefield to kill the enemy, but he used them as 'engineering soldiers', which is quite appropriate."
Chapter completed!