Ye Qiuli was digging a hole in the moon, naturally he was not idle and had nothing to do, he came here to look for excitement, and he also noticed this inconspicuous mountain because the "Red Rabbit" spacecraft scanned an anomaly when exploring the lunar environment. According to the observation of the spacecraft's radar imaging system, there is a huge cave about seven or eight hundred meters below the ground here, and this cave is still very neat, very much like the remains of some kind of intelligent life.

Such an extraordinary discovery naturally aroused Ye Qiuli's interest in an instant. It was precisely in order to find out what was going on, so he took the trouble to dig a passage that went straight to the ground, ready to go down to find out what the origin of this cave was, and whether it could be the remains of human beings.

If a human relic is really found inside the moon, it will be of great significance, whether it is left by aliens or left behind by cultivators on Earth after flying to the moon, it can cause a subversive sensation and overturn many truth-like conclusions in the earth science community. And that kind of situation will also be a huge surprise for Ye Qiuli, if he can find anything good from it, it will make him even more overjoyed.

After all, the strength of individuals or forces who can specially carve out a regular underground space at a depth of seven or eight hundred meters inside the moon should not be underestimated, and the things they store inside, whether it is science and technology left by aliens, super weapons, or magic elixirs and supernatural powers left by cultivators, will have a great effect and great significance for any person.

Of course, deep in Ye Qiuli's heart, he still hoped that the items collected in this underground cave were magic weapons and secret methods left by cultivators. No matter how you look at it, for a cultivator, these things are more helpful to him and can play a more important role. Although he can absorb some of the science and technology or super weapons left by aliens and add them to his "Chitu" spaceship, more value can only be realized through the interpretation and transformation of Huanyu Technology Group.

Those things may be of great subversive significance to the entire human race on the earth, but for Ye Qiuli, who has already embarked on the path of cultivating the truth and has made certain achievements, and has an infinite future in the future, it is not much use, it is better than that.

Moreover, in his judgment, the possibility of aliens leaving ruins inside the moon is far less than that of earth cultivators, even if there is really anything in this underground cave, there are not many items that may be left by aliens, and there are still treasures left by earth cultivators in ancient times after passing through this place.

Although there is a very science fiction theory in the cause of the formation of the moon by human beings on the earth, the moon is actually not a satellite formed naturally by the earth, but an alien spaceship, a superfortress built by aliens after hollowing out a planet, which is consciously placed above the earth to monitor the earth. But this statement is only a middle part of science fiction, and in the real world, there is not much possibility of being true.

Before he came into contact with the cultivation civilization and did not confirm that a fairly developed cultivation civilization did exist on the earth, although Ye Qiuli maintained a cautious skepticism about this very sci-fi statement, he had no way to prove it, so he could only maintain his judgment with suspicion.

But as a cultivator, after landing on the moon himself, he already had serious doubts about the possible reality. After all, in terms of the cultivation civilization that once existed on the earth, cultivating to the realm of being able to fly to the moon alone, such people are not as many as carp crossing the river, but they will definitely not be too rare. If they found out that other life was quietly building an observation base inside the moon, they would definitely take action to eradicate it.

This truth is an eternal truth for anyone in power, especially those who are extremely powerful, and they will never allow a force that may threaten them from within easy reach. Therefore, Ye Qiuli was actually very suspicious, even if there were alien relics on the moon, it would definitely be eradicated and erased by the earth cultivators, and even if he excavated it, he might not be able to get anything useful.

Of course, the possibility of such a worst-case outcome is very small, and by speculating on the cosmic position of the solar system, Ye Qiuli is still more convinced that the human relics that appeared on the moon are the imprints left by ancient cultivators. After all, the Burial God Abyss, where the solar system is located, is still the final battlefield of the Ancient God War, and in this huge star field, all the popular civilizations have been cultivation civilizations since ancient times, and the possibility of cultivator relics appearing will always be a little greater.

Digging all the way, Ye Qiuli couldn't help but secretly regret that his cultivation strength was still too low, if he had already broken through the Jindan stage and successfully cultivated into a Yuan Infant now, then he wouldn't need to dig so hard and slowly at this time, even if he couldn't escape far at a time, he could always pass through the seven or eight hundred meters of rock layer a few more times, which was definitely much faster than digging little by little with the Rainbow Sword.

However, even if Ye Qiuli is a little regretful, it is not a big deal, if this Rainbow Sword is born with spirituality, seeing Ye Qiuli not taking himself seriously like this, I am afraid that it will really turn the world upside down. Thinking that it is a peerless sword of the highest grade magic weapon, it did not drink the blood of the enemy, did not fight with countless divine weapons and sharp weapons battlefields, but was so humiliated and reduced to a rock digging tool, this will make it embarrassed!

Dig, slap, dig, slap, dig, slap...... After digging down for seven or eight hundred meters repeatedly, Ye Qiuli suddenly felt a lightness in his hand, and the Rainbow Sword was no longer forced, as if there was nothing underneath. Sensing such a situation, his heart suddenly rejoiced, and he couldn't help but exclaim: "It's finally going to be dug through!"

Success was just around the corner, Ye Qiuli didn't dare to be careless, but became more cautious, happy and sad things were not what he wanted to happen. At this time, he was on the top of an underground cavern that he didn't know how big it was, only separated by a thin layer of three-foot-thick rock, and he had to dig out this last layer of rock to open up this underground cavern, and at that time, the bottom would be completely suspended in the air, and there was no place to settle down, and if he wasn't prepared now, he didn't know what the outcome would be if he accidentally fell from it.

In view of this, Ye Qiuli temporarily stopped digging the last layer of rock under his feet, and instead dug a small hole horizontally around the passage to hide his body. When the hiding place was dug up, he crawled backwards and slowly climbed in, tucking his body in, leaving only his head and hands exposed, and then carefully dug out the last layer of rock and opened the connection between the passage and the underground cavern.

"Boom!" As the echo of the last layer of rock falling to the ground came, this mysterious cave hidden deep in the moon's earth finally showed Ye Qiuli its true face, just waiting for him to explore it clearly and quietly.

"Okay, it's finally dug through! It's not easy!" Finding that he had indeed dug a hidden cave seven or eight hundred meters deep in the ground of the moon, Ye Qiuli was really overjoyed, and after opening the last layer of rocks, he immediately couldn't wait to stretch out his neck and look at the underground cave with wide eyes.

Although it is seven or eight hundred meters underground, it is not dark in this cave, there is no light, and before he can turn on the powerful searchlight on the spacesuit, Ye Qiuli has already seen the general situation of this underground cave with the help of the little fluorescence reflected around the cave wall.

This is an underground cave with obvious human traces, surrounded by polished and smooth rock walls, on which there is no lighting equipment, not even other decorative objects, it is completely smooth. Looking around, there is not a single building with the hallmark or style of technological civilization, and it is clear that this is not a relic left by the legendary aliens.

After taking a brief look at the brief situation around the cave, Ye Qiuli turned on the powerful searchlight on the spacesuit and began to carefully observe this extremely mysterious underground cave.

After a powerful searchlight, the entire underground cave immediately became much brighter, and Ye Qiuli soon found that this cave is not very big, after visual inspection, the entire underground space is 1000 meters high, and the length and width are about 1000 meters, there are not many things in it, and the furnishings are also very simple, only a small palace is placed in the center of the cave ground.

After discovering that palace, Ye Qiuli couldn't help but feel refreshed, and observed it a little more carefully, and soon gave him a thorough look.

After observation, he found that the palace was no more than 10 meters high, no more than 30 meters long, and about 10 meters wide. It was the only source of light in the underground cavern, and the fluorescence he had seen at the beginning was emitted from here and reflected off the smooth rock walls.

After perceiving that this underground cave was very similar to the cave house left by a cultivator, Ye Qiuli became more and more careless, and he was a little more careful when acting. After all, under normal circumstances, cultivators like to set up a protective array around their cave to prevent others from disturbing or intruding. And the power of these formations is large and small, and the lethality is also high and low, without the permission of the owner, or if you don't understand the formation, you can break in casually, and if you are not careful, you can be planted in it, even if you lose your life because of it, it is very common.