A few people walked quickly towards the commotion, and soon came to an irregular circular pit!

The round pit is slightly elliptical, with a radius of no less than seven or eight meters, and the distance from the top to the deepest part of the pit is no less than ten meters.

Being able to dig such a large deep pit in less than an hour shows how high the work efficiency of several excavation robots is.

Sun Cheng didn't rush in, there had been a patriarchal text on the ruins of [Tiahuanaco City], as long as it was related to the pathfinders, with his previous experience in Lop Nur, he felt that he couldn't be too careful.

The worst case here is that a pathfinder visited a long time ago and had contact with the Paleo-Indians, so that the patriarchal script was imprinted on the ruins of the city of Tiahuanaco.

But if the other party had not only visited here, the result would have been completely different.

Especially when he is almost the enemy of the world, he needs to gamble!

He didn't go down to the pit, Sun Cheng was a cautious person, and he didn't urge when he saw that the sprint was still contacting the excavation robot that had fallen into the pit just now.

Soon, more detailed information came back.

"Master, look!"

Lunge lightly at his temple, and the next moment two pillars of light shot out of his eyes, and the environment around the two of them suddenly seemed to change, and they were in a slightly ocean-blue passage.

This is virtual imaging technology, and Sun Cheng is no stranger to it.

The sprint is clearly an image taken from the first perspective of the excavation robot.

Looking closely, it is not difficult to find that this passage is not a naturally formed underground corridor, but a relatively regular square with obvious artificial traces.

Measured by the size of the excavation robot, the tunnel should be no more than two meters wide and about three meters high, with some patterns engraved on the top of the wall and on the wall.

However, perhaps because of the fact that there have been many earthquakes of magnitude 7 or higher in South America in modern times, cracks of various sizes can be seen everywhere on the walls of the passage, and the patterns are very badly damaged.

So much so that after Sun Cheng tried to distinguish for a while, he quickly gave up.

"Master, do you need to continue excavating?"

In the pit, all the excavation robots have stopped working, and only the six transport robots are still working hard to transport the soil and rock piled up everywhere in the pit to the designated engineering soil and rock resettlement site again and again.

Sun Cheng didn't need to think at all, so he lowered his head heavily, and his cold voice did not fluctuate: "Dig, continue to dig all the way to the target location below!" ”

He didn't care about destroying a treasure of civilization handed down from the ancient Inca civilization, because more than these, Sun Cheng cared more about what kind of secret was buried in this building that was obviously deliberately hidden underground!

"Yes!"

Their own masters don't care, and it's even more unlikely that the Decepticons who sprint to this standard will have mercy on what humans have created!

With his order, the excavation robot that had fallen into the passage, and the five tais who stayed outside, turned into industrious diggers again, and the broken masonry and dirt continued to accumulate again in the pit.

Amid the roar of excavation, the sky lit up little by little.

Although Mora had arranged for the guards to pull a cordon on the perimeter in advance, it was enough to stop the humans from approaching.

But Sun Chengcheng is no more than those spy satellites of various countries that are all over the earth, peeking at every place on this planet.

Especially from the two Decepticons who had just been disposed of not long ago, he learned the news that Sonic had woken up, and the uneasiness in his heart that he had been being watched by others bothered him all the time.

Therefore, he could only endure the irritability in his heart and wait for the robot's work to end.

The wait was nearly two hours.

It wasn't until the morning sun had risen and Bolivia had ushered in a new day that the impulse to the surface of the body, which was also covered with water droplets, shook the body and reported to him in a slightly joyful voice.

"Master, the excavation robot has dug up the underground main hall shown in the detection, we can go in!"

Finally dug up!

Sun Cheng couldn't help but perk up, nodded, and suddenly a few droplets of water condensed above his head fell.

He didn't bother either, and jumped straight down the pit to the hole where the digging robot had just fallen.

This hole had been expanded two or three times since two hours ago, and the radius was at least two meters or more, enough for him to pass through with a Decepticon of this huge size.

Rushing had been distracted and controlling the operation of the excavation robot, obviously knowing the situation below better than him, so after Sun Cheng jumped down, he did not rush down, but stayed outside and waited.

Sun Cheng was not surprised, as soon as he jumped into the pit, he felt uncomfortable.

It was not a very wide passage, no more than four meters high and three meters wide, and with his body, he had to bend over to barely walk along.

Bending downward, although it looks very dark, the eyes of mechanical beings are different from those of humans, and they can clearly distinguish the surrounding terrain even in the dark, so even if there is no illumination, it does not affect their movement.

The sand and gravel and soil particles kept falling on his body overhead, and it was obvious that the violent methods of the excavation robots not long ago had destroyed the stability of the strata here.

Sun Cheng lifted his feet, which had fallen into the soft soil when he fell just now, and his brows furrowed slightly.

"The passage is not stable, Mora follows me in, sprint, you stay outside and don't have to come in."

"Yes!"

The sound of the dash was visibly disappointed, but it didn't disobey his orders, and stepped back out of the pit, returning to the outside of the pit and looking around vigilantly.

Sun Cheng moved a few steps forward, and Mora quickly jumped down as well, and after a little discerning in the tunnel, he first let out a light sigh, and then walked quickly behind him.

"Master, there's something weird here!"

"Huh?"

Sun Cheng stopped, reluctantly turned to look at him, and then asked, "What did you find?" ”

Mora's size looked no different from that of a human, so this passage, which Sun Cheng could only pass through by bending down, seemed very wide to him.

Mora's spirits were obviously lifted when he heard this, he hurriedly came to the side of the pit, pointed to a wall painting on the wall that had been broken to the point of not being shaped, and was a little excited: "There are words on the broken wall painting in this tunnel!" ”

"Words?"

Sun Cheng was slightly stunned, and soon his heart moved, and he had already reacted, "Words!" ”

"Yes, text!" Mora nodded affirmatively, "Although the Inca civilization is regarded as the most glorious civilization left by ancient humans in South America, as we all know, from its birth to its demise, the Inca civilization has not been able to form and create a unique set of scripts of its own and pass them down. When Lord Phantom and Master Atlas raised me, they left a lot of information about the Paleo-Indians in my core, and if I read it correctly, the characters on these wall paintings are indeed words, and these words happen to be stored in my core, they are called [Mayan Script]! ”