The troops first went all the way to the north, they passed through the grasslands of the Northern Wilderness, but fortunately, because of the war, there were no herdsmen grazing around the border this year, otherwise they would have been discovered by the herdsmen of the Northern Wilderness.

Even so, Ling Yi and the others were still very careful to pick and choose no man's land, especially the deeper they went into the Northern Wilderness, the more careful they became.

On the third day, they reached the north side of the city of the burial place, a day and a half away from the predetermined ambush site.

Originally, they could have arrived here a day earlier, but on the way, they met the migration team of the Northern Wilderness army, no less than 500,000 troops marched towards the east, Ling Yi estimated that this was Wei Zhi preparing to attack, and was inquired by the spies of the Northern Wilderness, and the war was about to break out.

Of course, why Wei Zhi set the day of the attack at this point in time was precisely to attract the cavalry of the Northern Wilderness and create opportunities for Ling Yi and them.

In a continuous hurry, Ling Yi and their battle plans were all carried out on horseback, and in addition to the garrison point, they also discussed the details of the battle.

In this mission, they will face several big problems: first, they do not know the reality of the current reality of the burial city, second, how to capture the burial city, and third, how to retreat.

Let's talk about the reality of the city of burial ground first, Ling Yi has already photographed Sun Ze and Hao Jun in advance this morning, they will travel faster alone, and they are strong, they can go deep into the city of the burial place to explore the reality of the reality, the task he assigned is mainly to let the two of them verify the truth and falsehood on the basis of Wei Zhi's information about the city defense of the city of burial, and determine the weakness and timing of the attack.

For the loyal bones who welcomed back the city of the burial ground, he must want to control the city of the burial ground, so that he can have fortifications to resist the attack of the Northern Wilderness, and if the city of the burial ground cannot be taken, he will face a situation of being attacked from many sides, and the capture of the city can only wait for the intelligence of Sun Ze and Hao Jun.

For the retreat, Ling Yi has established two routes, one is to directly break through the defenders of the Northern Wilderness of the Wanqing Grassland, and directly kill the generals all the way back, and the other way is to retreat from the west in a roundabout way, which is safer and will not suffer from the battlefield of the two empires like the Eastern Front, but in this way, it is easy to be intercepted and killed by the cavalry of the Northern Wilderness, and if you stay in the Northern Wilderness for one more day, the danger will be one point higher, or even more.

Unable to make up his mind, Ling Yi could only leave the retreat until the mission was successful, and then decide, depending on the situation.

On the road, the scouts kept reporting the surrounding situation, Lingyi and they successfully avoided a lot of cavalry and supply troops in the Northern Wilderness, and they had a lot of opportunities to hit the supply line of the Burial City hard, but for the sake of the task, they still endured it, this time the task was heavy, and everything else was a trivial matter.

At the scheduled time, Ling Yi and the others finally arrived on the northwest slope of the burial city, hid the team in the mountains and forests, and did a good job of exploring the periphery, Ling Yi ordered to rest in place, not to light a fire, but to attack with dry food every day.

It was evening, and the time of attack mentioned by Wei Zhi in his superstition was the next day, and it was not known what time Wei Zhi would choose to start the battle, and Sun Ze and Hao Jun had not yet returned.

Even if Wei Zhi was launched, without the intelligence in the city, Ling Yi would not dare to attack easily, and these brothers around him were all siblings and could not be reckless.

Knowing that in the middle of the night, Ling Yi waited for Sun Ze and Hao Jun.

Sun Ze and Hao Jun came to the mountain, opened the defense map of the burial city provided by Wei Zhi for the first time, and said: "We have carefully investigated the burial city, and from the location of the deployment, the deployment in the city is roughly the same as the clues provided by Uncle Wei, but there are also discrepancies!"

"Oh, what's the problem?" Ling Yi asked, and the others listened attentively.

"If you want to say something different, there are two points, one is the troops, and the other is the equipment!" replied Sun Ze.

Hao Jun followed Sun Ze's words and said: "That's right, we took a closer look in the city and found that there were still about 30,000 troops in the city!"

"Thirty thousand? This is too much, isn't it? Wanqing Grassland is a minority with 50,000 cavalry, and if there are still 30,000 cavalry in this burial city, won't we have to face an army of 80,000? 2,000 against 80,000, can we do it?" everyone jumped down, and Wei Wentao asked.

"This is really a bit tricky, isn't it? If we meet in the wild, even if we are defeated, according to our mount equipment, it should be easy to retreat with our whole body, but if we attack the city, it will be difficult!" Zhang Cheng also didn't believe that his side could easily attack the city of the burial ground!

"Instructor Hao, what Instructor Sun said before is that there is also a discrepancy in the equipment, what's going on?" Hou Aoxuan on the side interjected and asked.

Hao Jun put down the previous question and replied: "This is also a big problem, originally in Uncle Wei's intelligence, the enemy's defense means are not outstanding, but this afternoon, we saw with our own eyes that on the four city gates, they were equipped with mortal-level crossbows, and we watched them try it out, I guess this is specially prepared to deal with the cavalry that charges from a distance or the infantry attacking the city." It is estimated that the power can easily break through our armor, especially in the south gate, there are a total of twenty such mortal-level strong crossbows, and the east and west city gates are also ten each, and only the north gate has only five. ”

Everyone listened to Hao Jun's introduction, and they were even more hopeless about the forced siege of the city, not to mention the 30,000 defenders in the city, these strong crossbows alone can make the troops drink a pot, one is not good, before they rushed to the city gate, the whole army was wiped out!

"It's really tricky, we don't have a chance to attack the city with such a defense, or why don't we secretly steal the loyal bones of those two huge pits back?" Ah Hai suggested on the side.

However, it was quickly vetoed by Ling Yi, if it was another task, they could do it secretly, but this task was not good, they couldn't use sneaky means to disgrace the martyrs. Although they can't see the light now, they can't choose such a method because they are afraid of the defenders of the Northern Wilderness, and the martyrs can only welcome their return home with the most beautiful ceremony.

Besides, there are a lot of soldiers from the Northern Wilderness guarding the giant pit, and the strong crossbow above the south gate is not vegetarian.

However, Hou Aoxuan has a different opinion: "I think this situation is beneficial to us!"

"Well, it's all like this, and it's still good for us, don't you understand?" Ah Hai retorted from the side.

Hou Aoxuan replied: "We capture the city of the burial ground, and when the time comes, the cavalry on the Wanqing grassland will definitely retreat to fight for the city of the burial ground, and those defensive equipment can just be used to defend the cavalry of the Northern Wilderness from attacking the city!"

After hearing this, everyone also felt that it was feasible, but Ah Hai asked a question that had to be avoided: "There is nothing wrong with this, but now our problem is how to capture the burial city, not defend against enemy attacks!"

Everyone also had such questions, and they all looked at Hou Aoxuan.

I saw Hou Aoxuan reply: "Our solution is to wait!"

"Wait, what are you waiting for? Tomorrow the battle will start, and we don't have much time to spend here!" Ah Hai asked.

Hou Aoxuan shook his head and said: "The battle is not over in a day or two, and in the case of Youzhou, it is not two or three months before and after. ”

"Two or three months? You won't let us wait here for three months, will we? If we don't find out, we'll starve to death!" Wei Wentao retorted.

"Of course, we don't have to wait so long, we just need to wait for the burial ground city to become empty!" Hou Aoxuan said.

"When the city of the burial ground becomes empty, have you found anything?" Ling Yi asked aloud as he listened to Hou Aoxuan's words on the side.

Hou Aoxuan explained: "Just now I sorted out the situation of the supply line of the burial ground city reported by the scouts in the past three days, in addition to the grain, grass and horses transferred by the Northern Wilderness army, the burial ground city has transported a lot of grain, grass and war horses in the past few days!"

"Is there anything strange about this?" Ling Yi asked.

Hou Aoxuan continued: "There is no problem in transporting grain and grass, but the quantity is far greater than the demand here!"

"How?"

"I have estimated that the grain and grass in the Northern Wilderness in the past three days is enough for half a month's consumption of half a month's worth of 500,000 troops, do you say, the defenders here plus the cavalry on the grassland, need so many supplies?"

"Hmm, do you mean that this grain and grass is for the Northern Wilderness army that is going to the tribe?" Ling Yi asked.

"This is just one of the points, the most important thing is that the war horses, I don't know if Instructor Sun and Instructor Hao have found that the number of war horses in the city is far more than the number of soldiers?"

Hearing Hou Aoxuan's question, Sun Ze thought for a while and said: "There are a total of four breeding farms in the city, and it is estimated that there are no less than 100,000 war horses, as well as 10,000 tiger and wolf mounts!"

When Hao Jun heard the words "Tiger Wolf Mount", he reacted instantly, and said eagerly: "By the way, we didn't find a Tiger Wolf Ride in the city!"

"These war horse mounts are for the Northern Wilderness soldiers of the tribe!" everyone reacted instantly.

"That's right, I estimate that these are the supplies before the Northern Wilderness, just the migration of the army, and there is no time to transfer, as long as there is a war on the tribe's side, these supplies may be transported over, and at that time, many of the 30,000 soldiers in the city will be sent out to transport supplies, I estimate that with such a number, at least 20,000 soldiers can be escorted over!" Hou Aoxuan said analytically.

"In other words, there will only be 10,000 soldiers left in the city at that time, but this is not something we can easily fight!" Wei Wentao also understood the truth, but there were also many questions!

Hou Aoxuan smiled and asked, "If such a large supply team is attacked, do you say, will they go out of the city to rescue?"

"You mean to divert the tiger from the mountain halfway?" Wei Wentao asked, "But how can we sneak up on 20,000 soldiers and get them to ask for help from the city of burial?"

"No need to attack!" Hou Aoxuan continued to smile and said.

"What should I do then?" asked Wei Wentao.

"All we need to do is convince the defenders of the city that the supply force is under attack, and the rest will be fine!"

"Let them believe? You mean trick them out of town?" and what are you going to do?" asked a lot of people curiously.

Hou Aoxuan said confidently: "A big fire is enough!"

"Fire?"

"While the spring buds are not yet full of green, and the withered grass can still be ignited, let's have a fire attack, not to burn their grain and grass, as long as we can lure the soldiers out of the city!" Hou Aoxuan explained.

"You are a chicken thief!" Wei Wentao also understood, and praised Hou Aoxuan!

"I'm planning to divert the tiger from the mountain, what kind of chicken thief? It's a pity that I don't have the gunpowder from Youzhou, otherwise the effect will be better!" Hou Aoxuan said regretfully.