Mythical Qin: I, Gao Yao, will never be a eunuch!

"What? The Southern Border Army is actually as many as 30,000 people? Where did they come from? Oh no, we've been tricked!" Zhang Han's heart was shocked, and this thought flashed through his mind. He knew that he had been led into the Black Dragon's Mouth, and the rear army might have been attacked by the enemy at this moment, and the situation was precarious.

At this moment, a panic-stricken messenger stumbled in front of Zhang Han’s horse and shouted breathlessly: “Report…Report…General Zhang Han, the southern border troops that our army was chasing have disappeared!”

Zhang Han, who had not yet recovered from the shock of the rear army being attacked, was furious when he heard this. He widened his eyes and shouted angrily: "You are such a bold lunatic, how dare you lie about military intelligence! Come on, drag this man out and behead him immediately!"

The poor messenger was so frightened that his face turned pale. He trembled all over and begged, "General, please calm down! General, I never lied. The scouts in front have already met with the scouts of General Meng Yi's vanguard army, but they did not find any trace of the Southern Border Army. This is absolutely true. I hope the general will see clearly and spare my life!"

Only after hearing this did Zhang Han slowly raise his hand, signaling the soldiers who were about to drag the scout away to stop. He narrowed his eyes slightly, stared at the panicked scout in front of him, and listened carefully to what he reported.

After some thought, Zhang Han secretly judged that what the scout said did not seem to be a lie. After all, they had already met the scouts under Meng Yi, but they did not find any trace of the Southern Border Army. According to common sense, this situation was really incredible. Zhang Han had passed through this place before when he led his army on a march - Heilongkou. He had more or less understood the situation in this area.

It must be said that Heilongkou is a typical place with poor mountains and bad water. Its terrain is difficult to defend and difficult to attack, which is indeed a very suitable terrain for setting up an ambush. But at the same time, its flaws are also obvious. The narrow and winding passage runs through it, making the entire middle area seem particularly long. In this way, although the terrain is suitable for ambushes, there are actually very few places where ambushes can be placed.

In addition, this area has a large and small number of rivers crisscrossing and dense. If you want to use fire attack here, it is obviously difficult to achieve. Looking at the valley on one side of the road, although it is tall and steep, it is generally sloped and has an uneven surface. Not only that, there are many tall and thick trees growing below, which undoubtedly greatly weakens the attack effect of falling rocks and arrows. In short, except for the terrain itself having certain advantages, there are almost no other conditions that are conducive to setting an ambush.

This is exactly why Zhang Han and the mysterious Yi Xiaochuan resolutely stepped into this place. After all, as long as they can firmly hold the rear defense line, the safety of the marching troops can be basically guaranteed. However, now the Southern Border Army that they have been chasing all the way has disappeared so strangely!

"What exactly happened? Tell me the details immediately!" Zhang Han asked loudly with an angry look on his face.

"General, the Southern Border Army has indeed disappeared. Judging from the traces left at the scene, it seems that all the enemy troops have entered the extremely dangerous swamp area. At this moment, the distance between our vanguard and the vanguard led by General Meng Yi is less than three miles, and a head-on confrontation is about to take place, but the Southern Border Army has truly disappeared. Only some simple baggage and supplies can be seen abandoned here." The soldier who came to report the military situation answered tremblingly.

"Entering the swamp? How is that possible? Could it be that all of these guys can fly? As we all know, the swamp is a dead end where there is no way out!" Zhang Han widened his eyes and shouted in disbelief. He really couldn't understand how the Southern Border Army dared to take such a huge risk and go deep into this death trap.

Listening to the scout's slightly nervous and hurried report, Zhang Han's face became more and more puzzled. You must know that even in such an ancient era as the Qin Dynasty, geographical conditions such as strong winds and waves, natural muddy land, and daunting swamps are all within the scope of basic common sense for them. In such a dangerous place, let alone a large army wanting to pass safely, even if there are only a few people walking in it, it is difficult. Once you accidentally fall into the bottomless swamp, it is almost equivalent to embarking on a dead end with no return, which can be said to be a 100% chance of survival!

After all, Zhang Han had fought the Southern Border Army head-on before, and he knew that this army was composed of well-trained elite soldiers. Even if he knew that there was no safe way to retreat, whether he chose to surrender to save his life or to fight to the end, he would never take the initiative to step into the swamp and commit suicide. At this moment, Zhang Han had basically given up the idea that Gao Yao was still hiding here.

From the moment he learned that the rear army was attacked, he suddenly realized that all of this was a conspiracy carefully planned by the Southern Border Army, and he had undoubtedly fallen into the trap set by the other side. Now, the Southern Border Army has disappeared without a trace like a ghost. At this point, it is obviously meaningless to persist in tracking down where the Southern Border Army in the mouth of the black dragon is hiding.

"Quick, quick, quick! Send someone to contact General Meng Yi immediately and make sure to find out which direction he plans to break out from next!" Zhang Han had to change his strategy quickly at this time. As he gave the order, beads of sweat kept rolling down his forehead. After all, there were at least 100,000 imperial troops in Heilongkou. If all of them were left here, then it would be far more complicated than it seemed on the surface.

An army of 300,000 soldiers went to conquer the southern border, but was completely wiped out in the end. Although there were still 200,000 soldiers in the north, the imperial court at that time did not have enough ability to support so many soldiers. After all, these 300,000 soldiers had already used up all the resources of the Qin Dynasty. If all these resources were lost, there would be no need to think about it. These so-called kings would definitely not support the imperial court, but would definitely destroy the Qin Dynasty.

Zhang Han was definitely loyal to the Qin Dynasty. It can be said that he was not a bad person even if he died in battle for the Qin Dynasty, provided that it was worth sacrificing for the Qin Dynasty. This was also a point that many ancient people cared about their reputation. Most generals had nothing to say about Zhang Han dying as a loyal minister. What they feared was that they died unclearly and would be cursed in the end.

"Yes." After receiving Zhang Han's order, a soldier clasped his fists in agreement, then turned around and quickly left to carry out his mission.

Then, Zhang Han turned around and ordered another general beside him: "Send out our most elite scouts immediately and find out the details of the Black Dragon Pass exit. No details can be missed!"