"Someone got in here early!" Xu Ling's brows tightened.

Moreover, this person's aura is very powerful, and it has surpassed the level of the demon king.

"Is it a foreign evolutionary?!" Zheng Zihao asked.

If they had entered here earlier, there would have been no doubt that the situation at the Mausoleum of the First Emperor would have become even more tense.

Their purpose is to prevent the "Great Wall Project", and there are foreign evolutionaries who have surpassed the level of the Demon King, and among them, no one is their opponent.

"Our only advantage is that we know more about the Mausoleum of the First Emperor, and they shouldn't find it ahead of us." Zheng Zihao said.

"They don't have to find the key." Xu Ling said.

As long as Xu Ling and them are stopped, the purpose of the foreign evolutionaries will be achieved.

The arrow is on the string and has to be sent.

There were already other foreign evolutionaries in the rear, and Xu Ling had no way out.

As they continued to walk, two bifurcated entrances appeared in front of them, and terracotta warriors and horses holding Changge were waiting on both sides of the entrance.

These terracotta warriors and horses are well preserved and lifelike, if you don't look closely, they look like real soldiers, and their eyes seem to have a look.

"Acting separately, if you encounter a foreign evolutionary, you can avoid it." Zheng Zihao said.

Xu Ling and the others nodded.

Xu Ling and Yang Jian chose the road on the left.

Zheng Zihao: They walked towards the road on the right.

Just as Xu Ling and the others passed through the intersection, Xu Ling suddenly felt a chill down his spine, and he turned his head to look at the burly terracotta warriors, but he didn't find anything unusual.

"Could it be that I feel wrong?" Xu Ling groaned in a low voice.

Just now he clearly felt that the gaze of the terracotta warriors seemed to be looking towards him.

Time is pressing, Xu Ling can't take care of a lot, and there are already foreign evolutionaries chasing after him in the back.

There was a strong enemy in front and a chasing soldier in the back, and Xu Ling's situation was very passive, and they could be in danger of dying at every turn.

There was not much delay along the way, and an hour passed, and according to their travel speed, they should have gone dozens of miles deep into the Mausoleum of the First Emperor, deeper and deeper into the ground.

"It is no wonder that the Mausoleum of the First Emperor has been developed for more than ten years, and there has been no substantial progress, and the scale of the construction of the Mausoleum of the First Emperor is far greater than the world imagined." Qian Lang said in surprise.

I am afraid that the scope covered by the Mausoleum of the First Emperor has already involved the entire province.

They still haven't seen the end yet, the cave is empty, but the energy and matter emitted here are getting richer and richer.

For the past three days, Yang Jian and they were very tired.

Only Xu Ling was in good spirits, and he felt that after absorbing the energy and matter of the day, the five source eyes had reached the level of perfection.

"I'm going to break through again." Xu Ling muttered in a low voice.

"You're really a monster." Qian Lang said embarrassedly.

It's only been a long time, and Xu Ling's strength is about to rank among the top powerhouses, but this is only for the entire Great Xia.

The evolution time abroad is longer, and unimaginable powerhouses must have been born in them, just like the ancestors of the Zhou family.

The evolutionary level of the ancestor of the Zhou family no longer belongs to the first stage, which is difficult to figure out.

Xu Ling doesn't know what realm the ancestor of the Zhou family has reached now, and under the expectation that he is probably almost the same as the ancient ascended sages.

As he continued to march, Xu Ling's body was faintly accompanied by the sound of wind and thunder, and the thunder and light shimmered all around him, and it was a matter of course that he was successfully promoted to the sixth source.

A powerful force filled the whole body, and the vitality in the body surged, forming a steaming flame outside the body.

Another three days passed.

The bamboo slips brought out from Wulingyuan suddenly shone brightly.

"The key is ahead!" Yang Jian was overjoyed.

Their pace accelerated, and the bamboo slips were left by the ancestors of the Qin Dynasty, who fled the war and migrated to Wulingyuan en masse, and they participated in the construction of the Great Wall.

Now it seems that the people responsible for the construction of the Great Wall are some powerful evolutionaries.

The purpose of the Great Wall was not simply to defend against ordinary invaders.

"I'm afraid that the strong enemies of Great Xia are far more than we imagined." Xu Ling sighed.

The future after Great Xia is dark.

Xu Ling was wondering if there was an extremely terrifying existence behind the evolutionaries abroad.

"No, it doesn't seem to belong to the realm of the Mausoleum of the First Emperor anymore!" Qian Lang opened his mouth in surprise.

The walls of the cave here are very primitive, as if they were formed naturally, and they are completely different from the passage of the Mausoleum of the First Emperor.

A mysterious and primitive aura roamed in the cave, making Xu Ling and the others have to stop.

But after coming here, the fluctuations coming from the bamboo slips became more and more intense, with a scorching aura.

As they passed through the hole, a huge space came into view, which couldn't help but make Xu Ling hold their breath.

This place is not like an underground space at all, but another world, you can't see the top when you look up, and you can't see the edge from afar.

"Where the hell is this?!" Qian Lang forgot to breathe.

They are here, and they seem very small, like a drop in the ocean.

"Here...... There seems to be no concept of time. Xu Ling found a serious problem.

He can't feel the passage of time here, as if this is a forgotten place by the world's avenue.

Yang Jian, under their careful perception, also discovered this serious problem.

"Could it be that this is a place similar to the immortal realm that the First Emperor opened up after failing to seek the elixir?" Qian Lang boldly guessed, "If the First Emperor stays here, will he really be immortal?" ”

"With the character of the First Emperor, he shouldn't stay here for a long time." Xu Ling said.

In the records of ancient books, the first emperor looked down on the world and underground, how could he be an immortal emperor in this dark underground.

Yang Jian agrees.

But just because the First Emperor won't do that doesn't mean that others won't.

They searched according to the fluctuations of bamboo slips, and continued to go deeper into this world.

Gray dust floated in the space, forming patches of gray mist, as if frozen in mid-air.

"There was a big war here." Xu Ling looked at the ruins around him, many buildings had collapsed, and there were still traces of swords and axes on the stones.

An ancient road can be faintly discerned from the ruins, leading to an unknown place.

"If there's a big war, why can't you see the corpses?" Yang Jian found a big problem.

Only traces of swords and axes could be seen here, but there was not a single corpse left, not even a trace of dried blood.

"The answer may lie ahead." Xu Ling looked ahead, his mood becoming more and more depressed.

The atmosphere here is very familiar, and Xu Ling has seen it more than once.

The heavens and the earth became more and more gray, as if they had lost all color.

Qian Lang looked at Yang Jian and exclaimed, "You have faded!" ”

He didn't know if there was something wrong with his eyes.

In the whole heaven and earth, it seems that no other colors are allowed, they are like being in an ink painting, and they also become the characters in the painting.

"It's weird." Yang Jian frowned, even if he opened his vertical eyes, it would be useless, there was only gray in his eyes, and nothing else.