Jiashan Gorge is a valley road in the Yinshan Mountain Range, with a total length of about 40 miles, with cliffs on both sides, and relatively gentle hills, and it is also a common passage that passes through the east end of the Yinshan Mountain Range.

However, although the valley road is not narrow, it is not wide there, and the narrowest place is only enough for four or five horsemen to walk side by side, while the general road can be used for more than ten horsemen in parallel, so the 20,000 Hun troops were pulled into a team of more than ten miles in the valley.

Because Tou Mandan had already ordered to camp and rest after passing through the valley, the Hun soldiers still urged the horses forward and entered the valley despite their own sleepiness and lack of horses.

The sun was sinking in the west, and the sound of horses' hooves echoed through the valley like rolling thunder. Although the horses were very tired, the horses were moving much faster than the men, so after more than an hour of travel, the head man at the front of the team could see the exit of the canyon in the distance.

He knew that not far from the exit of the canyon, there was a lake, and the general pedestrian tribe was happy to camp by the lake, which was also the reason why Toumandan Yu decided to cross the Jiashan Gorge and camp again.

At this time, the road is relatively wide, and there are no unattainable cliffs on both sides, but some relatively gentle hills, so Tou Manshan Yu also breathed a sigh of relief, turned his horse back, and said loudly: "It's about to go out of the valley, everyone work harder, and you can camp and rest after leaving the valley......"

Before the words fell, I only heard the sound of "grunt" and "gurr" sounded, and I saw that from the mountains on both sides, rolling down.

Although the hills on both sides of the canyon are not high at this time, and the slope is not steep, it may be difficult for horses to climb up, but it is not difficult to climb on foot, and there are not many trees on the mountain, only covered with thatch, but the stones tumble down from the mountain, and the power is still very amazing. After rolling down the mountain, it is not at all something that the flesh and blood of men and horses can resist.

As a result, there was a scream and wailing in the valley, and the war horse that was hit by the stone suddenly broke its bones and bones, and fell to the ground with a scream, and the knight on horseback fell down, and some knights in order to avoid the stones, they pulled out their horses' heads and dodged left and right, but although the canyon of this section of the road is not narrow, it is not as wide as it is, and the people and horses are better to maintain order, but they must be unwilling to run back and forth, and as a result, the people and horses are crowded back and forth, rushing, and there are still stones rolling down from the mountain, Therefore, many war horses fell to the ground, and the warriors fell off their horses, and some of the soldiers who fell off the horses were hit by stones, and some were trampled by the war horses in the chaos, and countless injuries and deaths were all over the field, and the scene was very chaotic.

It took five or six minutes for the stones to stop, and hundreds of Hun soldiers were killed and wounded, and the road out of the valley was blocked by stones, making it difficult to pass again, and although the Hun army could see the valley mouth, it was out of reach.

However, in the process of rolling down the stones just now, Tou Manshan Yu rode his horse to dodge left and right in the chaos of the army, turning and dodging, although he was old, but he was agile, not inferior to the young people, and the riding skills were superb and experienced, so he dodged several boulders in a row, and he was safe and sound, and even the nine-tailed white banner in his hand did not fall.

After the rockfall stopped, Tou Mandanyu settled down and looked at the mountains on the left and right, at this time he also knew that he had been ambushed, but he wanted to find out where the enemy was? to be able to try to fight back or retreat and escape.

And at this moment, I saw a blue-maned horse on a raised rock on the left side of the mountain, and a man sitting firmly on the horse's back, with a helmet and armor, holding a curved bow in his right hand, and drawing a feathered arrow from the quiver in his left hand.

Although it was far away, Tou Man Shan Yu still recognized it at a glance, this person was Mao Dun, and at this moment, Tou Man Shan Yu's heart suddenly understood, now it is certain that what Yanmen Pass is empty, what can go south to loot, all are fake, but the trap set by Mao Dun is naturally to kill himself.

After making up his mind to kill Touman Shan Yu and seize Shan Yu's position, Mao Dun also began to plan and negotiate a plan to kill Tou Man Shan Yu.

However, now with the addition of the 5,000 men and horses still left in the tribe, Maudun's army is less than 7,000 people, and such a small number of troops is of course not enough to confront Toumandanyu, so if you want to kill Toumandanyu, you can only outwit it, not the enemy. Fu Gongyan gave Mao Dun two plans, one was to greet Tou Mandanyu, and when the two met, they waited for the opportunity to kill Tou Mandanyu, and Fu Gongyan even said that he and Shui Xinyue both assassinated Tou Mandanyu; The second is to find a place to set up an ambush army on the way, attack Toumandanyu's army, and kill Toumandanyu.

After careful consideration by Mao Dun, he finally chose the second strategy, which was to set up an ambush in the middle of the road and kill the head Mandanyu.

In fact, Mao Dun's heart is very clear that the first strategy has a greater chance of success, because it is natural for Tou Manshan to come to Yanmen Pass and greet him by himself, and after the two meet, of course, they will inevitably have to talk closely, even if Tou Manshan Yu has guards to protect him, he will be weaker, but he has seen the skills of Fu Gongyan and Shui Xinyue, and dozens of guards can't stop them at all, so in this case, the chance of succeeding in assassinating Tou Manshan is at least eighty percent or even ninety percent.

There are a lot of variables in the ambush halfway, one is to determine the route and time of Toumandanyu's march, only by correctly mastering the route and time of Toumandanyu's march, can you choose the location of the ambush, otherwise even if the ambush is good, but Toumandanyu does not take this route, then all the effort will be in vain; The second is that the ambush was successful, but it is difficult to say whether he can kill Tou Man Shan Yu smoothly, after all, Tou Man Shan Yu has many guards around him, and in the melee, the possibility of escape is not small, and once Tou Man Shan Yu escapes, then he will be a complete failure.

But Mao Dun still chose the second strategy, and did not choose the first strategy, the reason is that the first plan is too dependent on the ability of Fu Gongyan and Shui Xinyue, this time Mao Dun's goal is not only to kill Tou Man Shan Yu, but also to seize the position of Shan Yu.

This kind of tribal power struggle is a normal thing in the grassland, but the Xiongnu are a people who worship wolves, and among the wolves, there is a rule, any wolf in the wolf pack has the qualifications to challenge the wolf king, and only the wolf who defeats the old wolf king can become the new wolf king. Although the seizure of the position of Shan Yu is not determined by the duel between the old and the new Shan Yu like the wolves, if it is a heads-up, Mao Dun will definitely be able to defeat Tou Man Shan Yu. But if you want to seize Shan Yu's position, you must mainly rely on your own strength to kill Tou Man Shan Yu.

If you rely too much on the ability of Fu Gongyan and Shui Xinyue, it will be difficult for Mao Dun to serve the public in the Xiongnu Ministry, even if he wins the position of Shan Yu, it will not last long, after all, Fu Gongyan and Shui Xinyue cannot stay in the Xiongnu tribe for a long time, and as soon as they leave, it is inevitable that other magnates in the Hun Ministry will unite to rebel against themselves. In addition, with Mao Dun's character, he didn't want to be a single Yu who relied on the strength of others to get to the top, so Mao Dun knew that the second strategy was highly variable and had a small chance of success, but he still chose the second strategy and ambushed Tou Mandanyu's army halfway. Only in this way can you rely on your own strength.

Fu Gongyan had no objection to Mao Dun's choice, after all, if the ambush failed, he could still go back and use the first plan, but Fu Gongyan was not familiar with the geography on the grassland, so he asked Mao Dun to determine where to set up an ambush.

After careful consideration, Mao Dun decided to choose the location of the ambush at the southern exit of Jiashan Gorge. So Mao Dun immediately led the army, together with Fu Gongyan, Shui Xinyue and others, to the south exit of Jiashan Gorge.

After Fu Gongyan checked the terrain, he thought that this was indeed a good place for an ambush, and if Tou Mandan Yu really took this road, the chance of a successful ambush was still not small, so Fu Gongyan began to plan with Mao Dun how to ambush the people.

At this moment, Kalugu led an army of a thousand and rose first. Maudun was also very happy, because after obtaining these thousand men, he could strengthen his own troops, and the certainty of success would be greater.

Before setting up an ambush, Fu Gongyan reminded Mao Dun that he first had to tell the soldiers what they would do in the future, because Tou Mandan had reigned for more than 30 years and still had considerable power among the Xiongnu tribes. Therefore, it is very important to let the soldiers know in advance.

After listening to Fu Gongyan's reminder, Mao Dun suddenly realized, and also admired Fu Gongyan's thoughtfulness, but mobilizing soldiers is not a difficult thing, first, these soldiers are basically absolutely obedient to Mao Dun's orders, and dare not have any disobedience; Second, it is inevitable to make up some panic words to coax the soldiers and make them follow them with all their hearts, and this little clever adventure is still there.

So Mao Dun immediately gathered all the soldiers and told them that this time Tou Mandan was actually going to kill himself in the name of sending troops south, so as to pass on the position of Shan Yu to the son of the Da Yan clan, and not only to kill himself, but also to kill all his subordinates and soldiers, and to eliminate future troubles forever.

At this time, the soldiers were also nervous, because Touman Shan Yu could not tolerate Maoton, and wanted to pass on the position of Shan Yu to the son of the Da Yan clan, which was not a secret in the Xiongnu tribe, many soldiers knew, and they were all subordinates of Maoton, Touman Shan Yu wanted to get rid of Maoton, and he was executed together with his subordinates, which was also very reasonable, so although what Maodun said was sudden, the credibility was still very high, so the soldiers were very frightened.