At this moment, in front of Ye Guan's eyes, three roads appeared, and the messy footprints found before converged from two of them and merged into the middle road.

This underground cave was obviously dug by man to achieve some purpose. And this purpose should be aimed at the East Palace.

"No wonder I haven't found any traces before, but I didn't expect to use this trick. Ye Guan glanced at the passages left and right, and the pitch-black passages had no end in sight, like two pitch-black beast mouths, devouring everything.

As soon as his mind moved, Ye Guan shifted his gaze to the passage in the middle, and the footprints of the passages on both sides finally converged here, so this passage was likely to hide a great secret.

But Ye Guan didn't enter immediately, just retreated quietly, his breath was restrained, and the speed of retreat was very fast, and it didn't take long for him to leave the cave and come to the dense jungle before.

Leaving a hidden mark on the trees on the side of the jungle, Ye Guan turned his head and followed the footprints on the grass before, slowly moving forward.

In the cave, three passages are clearly visible, converging into the middle passage. This should be the instructions received by the people in the two passages, and then enter the middle passage. And the footprint that Ye Guan found before came straight out of the cave.

In other words, the hole he found now should not be an entrance, but an exit.

Moreover, this underground passage is extremely hidden, and if you hadn't found a string of footprints, you wouldn't have been able to discover this cave passage. But Ye Guan carefully analyzed, thinking that the previous three teams of scouts disappeared out of thin air, and he could not find this underground passage after exploration, so he felt that the other party should not make such a mistake, this person who came out of the cave, if he did not do it on purpose, then he should have received some urgent order, so that there was no time to hide his traces.

The underground passage is secret, there must be a lot of danger hidden in it, before he figured out how this passage is used, Ye Guan will definitely not go deep easily, he has already seen the convergence of the three passages, then he basically proves his conjecture, at this moment, why not follow this footprint and see what will appear in front of him.

Ye Guan turned his fighting spirit, his steps were fast, and he walked through the grass quickly, much faster than in the underground cave, and after a while, he came to the place where he first saw the footprints. Ye Guan stopped, attached himself to the grass, spread his senses, sensed everything around him, and after making sure that there was nothing abnormal, he followed the grass and hurried forward.

This footprint has been non-stop, as if drawing a circle of previous walking, if Ye Guan is not wrong, this footprint is moving upwards around a mountain range, from time to time, and Ye Guan has been following the footprints, until now, he feels that he is almost at the peak of Zongqiu Mountain.

His brows furrowed slightly, although he determined that the direction of action of this footprint might be directed to the peak, but Ye Guan did not change the route of travel, he didn't think that anyone would be so stupid, exercising in this barren mountain range, circling around a mountain range. The reason why this person walked like this must have been a pre-planned path, and if he deviated from this route, he was likely to encounter unexpected things.

It is possible to trigger a warning mechanism, or it is possible to set off a hidden trap. Of course, with Ye Guan's skills, he was not afraid of either of them, and what he was most worried about was that if he left this route and went straight to the top of the mountain, he was likely to touch the killing array and pose a deadly threat to himself.

As we get closer to the top of the mountain, the traces of this footprint become more and more shallow, and the surrounding woods and grasslands are becoming more and more sparse, and the number of trees is much smaller than that at the foot of the mountain, which also makes it more and more difficult for Ye Guan to hide his body. However, Ye Guan still kept hiding his body so as not to startle the snake.

The purpose of his solitary appearance this time was not to crack the enemy's ambush, but to find out what the enemy was doing. With his own strength, it is impossible to crack the ambush of the entire Zongqiu Mountain.

When he was about to reach the peak of the mountain here, the grass and trees around him were very sparse, and the footsteps he had followed all the way before had disappeared, and there was no trace of anyone passing by, and everything disappeared very suddenly, which made Ye Guan frown slightly.

Ye Guan was attached to a bush, calming his mind down, and his perception spread, but he didn't find anything wrong, but the footprints in front of him disappeared very abruptly, which made Ye Guan suspicious.

Slowly running the fighting qi, a faint cyan light point slowly appeared, condensing on Ye Guan's middle finger. Curl your fingers into a flick and flick it at the place where the footprints have disappeared. The pale cyan light flew out quickly, shooting straight in front of the footprints.

However, there was no imaginary light sound, and this pale cyan light cluster was actually like this. Disappeared out of thin air. It was as if something had swallowed it up at this moment.

Ye Guan frowned slightly, and an idea immediately appeared in his mind.

"Illusion Barrier. Ye Guan frowned slightly, he immediately thought of this possibility.

The illusion barrier is one of the many formation barriers, and it does not have the ability to directly block things, but it can transform the environment, so that people can not see any clues at a glance, so as to block the things behind this barrier. This barrier is also known as the Blinding Method, and it is a relatively low-level type of illusion formation. But even though it's low-level, it can work wonders when used at certain times, like now.

If Ye Guan hadn't found a string of footprints and followed the footprints up the mountain to come here, he would never have imagined that there would be an illusion barrier here. Because from a distance, it looks like an ordinary mountain range, and there is nothing abnormal.

This barrier has also appeared outside Tianqing City, and the appearance of Tianqing City in the eyes of the world is actually the illusion barrier. The real Tianqing City is not on that mountain at all, and on that mountain, some are just teleportation formations.

"No wonder. Ye Guan frowned, and said secretly in his heart: "No wonder all the scouts can't see any abnormalities, and they can't find any clues within thirty miles, so there is still this hand." ”

Thinking about it, Ye Guan's mind was a little heavy. The enemy has done so much with great strength, and it is an underground passage and an illusion barrier, so it is no wonder that the three teams of scouts he sent have no news, but even if they can return safely, they may not be able to discover the secrets hidden in this mountain. I also stumbled upon this series of footprints by mistake, so that I could discover these hidden secrets.

The illusion barrier is generally accompanied by a warning formation, if Ye Guan goes straight into this barrier, it will inevitably trigger the warning formation, and the people inside the barrier can immediately know that someone has invaded.

"No wonder, coming down from the mountain, there was not a single beast, I see. Ye Guan's eyes narrowed slightly, although he cultivated profoundly, he didn't understand the formation. The formation thing, even if you know its principle, you can't cultivate it without the affinity of the spell, let alone crack it. Although Ye Guan Zhiguan is the Eastern Palace, he has no achievements in the formation, and he can recognize the formation in front of him, which is also through many ancient books and the previous exchange with the demon Ning Yi.

With a slight movement in his mind, Ye Guan left a mark in a hidden place, held his breath and condensed, and slowly retreated.

The enemy had set up an illusion barrier in such a secret place, and there must have been a plan in it, but Ye Guan couldn't rush in alone now, it was pointless to do so. And he didn't know what was hidden behind this barrier, if there was a killing array hidden behind it, once he entered, it would be triggered immediately and he would die.

Now that the situation has been discovered, Ye Guan gently retreated, came to the previous road, followed the footprints on the ground, and quickly rushed back.

Since you can't break the illusion barrier, you can only go back and find out the specific purpose and vertical and horizontal direction of the underground passage first, which will also be of great help to the future attack.

After a day's tracking, when Ye Guan returned to the entrance of the cave again, it was already the sun in the west, and it was afternoon. He stood quietly at the mouth of the cave, and did not lift the lawn covering it for the first time, but extended his perception into it, and after carefully probing and making sure that there was no danger, he lifted the lawn and jumped in.

After entering the cave, Ye Guan got up, rolled up the lawn covered outside, and covered the cave again, making an illusion that no one had discovered, and then touched the rock wall of the cave and walked forward.

This time, he did not invoke the douqi lighting to prevent the grass from startling the snake.

Ye Guan calculated in his heart that this passage was not used very often, and it might only be used to transmit secret news in case of emergency, and the route up the mountain behind was also strange, and there was an illusion barrier on the top of the mountain. If you think about it this way, the place where the passage in front of you leads is likely to be the enemy's meeting point.

He vaguely guessed in his heart that at the end of this cave, it was likely that many enemy soldiers had gathered and hid in this underground passage, waiting for the attack of the Eastern Palace.

Calculating what might happen in his heart, Ye Guan touched the rock walls on the left and right, and walked forward quickly, walking for about a quarter of an hour, and then came to the fork in the road. This time, Ye Guan did not hesitate and went straight into the fork in the middle.

After walking forward for more than a quarter of an hour, at the end of the cave, Ye Guan faintly saw the gray candlelight coming, which made him can't help but feel that his whole body immediately fell to the ground, held his breath and looked forward carefully. At the turn of the passage ahead, there should be a wall lamp, and the dim candle flame at this moment is likely to come from this wall lamp.

After ruling out the danger, Ye Guan let out a sigh of relief. Such a deep cave, Ye Guan went alone, the road ahead did not know where it led, and the way back was extremely far, it was impossible to say that Ye Guan was not nervous in his heart. Even though he had been through a hundred battles, he was extremely cautious at the moment, and if he was found in this cave, he would be in an extremely difficult situation.

Holding his breath and concentrating, he walked forward more carefully, the gray candlelight in front of him became brighter and brighter, Ye Guan walked to the turn of the cave, leaned over and lay on the ground, first felt it carefully with his senses, and found that there was nothing abnormal, then he poked his head out and looked beyond the turn of the cave.

And the situation in front of him made Ye Guan's heart suddenly.

In front of you is a large underground chamber, which is filled with all kinds of war materials. Crossbows, arrows, armor and weapons were all available, and even a suggested trebuchet was found in one corner.

On the rock walls around this secret room, several candles are hung to illuminate the entire secret room. In the middle of the secret room, a passage that is not wide, leading straight ahead, at the end of the passage, is a wooden door, from the perspective of Ye Guan, you can't see the texture of this wooden door, but you can also know by guessing alone, this wooden door should be extremely tough.

This secret room was obviously used by the enemy army to collect supplies, and judging from the traces on the ground, it was not long ago that someone passed through it.

Ye Guan frowned, and said secretly in his heart: "It seems that the first line of defense prepared for me by Shen Tuyan is actually this underground cave, he hid all the sergeants in this cave, and isolated them from each other, so that even if our sergeants find the entrance to the cave, they can't be wiped out immediately." There is a wooden door like the front, and it is not too good to be attacked by fire. ”

Ye Guan's eyes were gloomy, and he looked at the wooden door not far away, and at this moment, the wooden door moved.