Hearing Yang Xiao's words, Lin Xuan's face immediately fell.

Lin Xuan, who possessed the Pill Emperor Secret Manual, naturally knew the difference between these top-grade Soul Formation Pills and ordinary Soul Formation Pills.

The Soul Formation Pill was a special pill. Moreover, it was only consumed during the most critical breakthrough for cultivators.

It was also because of this point that for those cultivators who consumed Soul Formation Pills to break through from the peak of the Nascent Soul Stage to the Soul Formation Stage, other than the difference in the level of the Heavenly Dao laws that they comprehended, there was a certain difference in their strength. Consuming Soul Formation Pills of different levels would also have a certain impact on their own strength.

For example, Yang Xiao, who had consumed an ordinary Soul Formation Pill, only had a certain increase in speed in the Heavenly Dao laws he comprehended.

Dong Chu, who had consumed a top-grade Soul Formation Pill, had comprehended the earth attribute and great strength after breaking through to the Soul Formation Realm.

" Lin Xuan, Dong Chu knows that Huang Fu has personally led a team here. Perhaps he has already prepared for Huang Fu to be killed and the Yan army he brought to be completely wiped out," Yang Xiao said to Lin Xuan.

At this moment, another Chu soldier quickly stepped forward and knelt down in front of Yang Xiao.

"Commander Yang, secret message."

After Yang Xiao received the secret report from the Chu soldier, he immediately opened it and read it seriously.

After a while, Yang Xiao waved at the Chu soldier and said," Alright, I understand. You can retreat and strengthen our Chu army's defense."

After the Chu soldier retreated, Yang Xiao sighed again, his face solemn.

" What's wrong?" Lin Xuan asked Yang Xiao.

" Governor Dong may have received news of Huang Fu's death and the Yan army's defeat. According to the scouts at the front, the Yan army led by Governor Dong has begun to retreat a distance."

"It seems that our plan to take advantage of this momentum to fight Yan Jun to the death has failed."

" Oh?" Lin Xuan looked at Yang Xiao doubtfully.

Yang Xiao continued," When I learned that Huang Fu was leading his Yan army to fight to the death with my Chu army, I was already prepared."

" If I am defeated by Huang Fu's Yan army, I will retreat and retreat a little further. If I defeat Huang Fu, I will definitely take advantage of the momentum that I have finally created to lead the Chu army to attack the last Yan army camp."

" But now, Governor Dong has already led the Yan army to retreat to the back of their camp. I believe Governor Dong is prepared for this. If we lead the army again, I'm afraid we will die without a doubt."

Hearing Yang Xiao say this, Lin Xuan immediately took the map from Yang Xiao's hand and looked at it.

It turned out that after Dong Chu escaped, he had prepared a backup plan in advance and placed the Yan army that he had secretly arranged on the surface.

This Yan army was different from the Yan army led by He Zhi, Yao Pu and Huang Fu. The Yan army led by Dong Chu could be said to be the elite of the Yan army and was known as the Yanshan Cavalry.

" Are the Yan Mountain Cavalry very strong?" Lin Xuan asked Yang Xiao.

In his eyes, even if Dong Chu's true cultivation was at the seventh level of the Soul Formation Stage, the so-called Yan Army was just that.

After fighting Yan Jun, Lin Xuan felt that these Soul Formation Realm generals were not as terrifying as he had imagined.

"You think they are weak because you have more magic treasures, cultivation techniques, and other methods."

Yang Xiao rolled his eyes at Lin Xuan and continued," In fact, this group of Yan soldiers isn't weak, especially the Swallow Mountain Cavalry. They are very good at fighting on complex terrain. Moreover, even in mountain battles, the Swallow Mountain Cavalry can also be divided into small groups to make full use of the terrain advantage to defend and launch counterattacks."

Yang Xiao saw that Lin Xuan was still dumbfounded, so he continued to explain to Lin Xuan the power of the Swallow Mountain Cavalry.

After some understanding, Lin Xuan finally understood how terrifying the Swallow Mountain Cavalry led by Dong Chu was.

The Swallow Mountain Cavalry were better at defense, and they were all divided into small forces by Dong Chu to fight.

In addition, Dong Chu led his army to retreat to Shenjian Pass at this moment, and the terrain was dangerous.

Dong Chu chose to camp on two mountain ranges of the Divine Sword Pass this time. It seemed that he would have to fight a long battle of attrition with Yang Xiao.

" It's not easy to take down this Divine Sword Pass. It's not that easy to defeat Dong Chu," Yang Xiao said as his fist knocked heavily on the map.

" Commander Yang, although the location of the Divine Sword Pass on the map is dangerous, if it's like what you said, Dong Chu chose to camp on both sides of the mountain peak. The two peaks on both sides of the Divine Sword Pass are not connected. If you lead the Chu army to surround the two peaks and cut off the water source, won't that be enough?" Lin Xuan said to Yang Xiao.

"In addition, Commander Yang, you are also at the seventh level of the Soul Formation Stage. I don't think this terrain is difficult for you, right?"

" It's not difficult for me." Yang Xiao nodded and continued," However, for the Chu soldiers behind me, whether it's the Yan Mountain Cavalry's attack or the Yan Army's arrows, they can't withstand it."

It was only at this moment that Lin Xuan realized that the Chu soldiers led by Yang Xiao were not very high in cultivation.

Even Yang Xiao's deputy generals were only at the fifth level of the Nascent Soul Stage.

Most of the Chu army soldiers were at the Golden Core Realm. Some of the newly joined Chu army soldiers were only at the Core Formation Realm.

" Previously, I saw that the Chu army and Yan army weren't at this level," Lin Xuan said to Yang Xiao.

" That was a battle on flat ground. The Yan army didn't show any real standards, and it wasn't the Yan Mountain Cavalry led by Dong Chu."

Yang Xiao looked up at Lin Xuan again and said to him," Lin Xuan, do you know what the basic conditions are to become an Swallow Mountain Cavalry?"

" I don't know." Lin Xuan shook his head.

"To become a Swallow Mountain Cavalry, the most basic requirement is that one must be at the Nascent Soul stage."

" His strength has reached the Nascent Soul Stage?"

Hearing this, Lin Xuan could not help but gasp.

From the looks of it, the Swallow Mountain Cavalry led by Dong Chu was currently stationed at the Divine Sword Pass. It was indeed a bone that was extremely difficult to chew off.

More importantly, the Yan Mountain Cavalry was defending the Divine Sword Pass. They could attack or defend.

If he ignored them and let Dong Chu wait for the King of Yan's reinforcements, Dong Chu would definitely lead the Yan Mountain Cavalry to attack Jiangling again.

At that time, it would undoubtedly be more difficult to defeat Dong Chu.