It turned out that since Guo Jia woke up, he began to make every effort to collect information from the princes in various places.

In order to improve efficiency, he specially transferred his best spy unit, Hei Baiyu, to Xuzhou.

Originally, these elite spy teams were scattered all over the place, engaged in intelligence gathering and other secret work.

However, since Cao Cao's temperament changed drastically after the death of his close relatives, and after disrupting Guo Jia's offensive plan, he had to take extreme measures to gather his elite subordinates scattered all over the country to Xuzhou.

It can be seen that he regards this place as a decisive battle to determine the life and death of the Cao army, and he must use all the means and strategies at his disposal to save the Cao army, which is gradually falling into crisis.

And this time, the plan had already begun long before Liu Bei and Tian Kai's reinforcements arrived at the place where they were garrisoned.

Guo Jia has already analyzed the reinforcements who came to help Tao Qian from all over the world, and the only one who can pose a slight threat to Cao's army is this Tian Kaijun from Qingzhou.

Compared with Kong Rong, who marched slowly and had not yet arrived at the battlefield, Tian Kai and his army did not seem to hesitate too much on the road to Xuzhou City, and they advanced all the way to a place only two mountains away from Cao's position.

Standing on the top of the mountain, the two armies can even look at each other across the bank.

But at the same time, this is also the place where Guo Jia has already laid down the elite black hundred tongues.

Because he had long expected that if Tian Kai advanced all the way, he would definitely settle down here, and Guo Jia understood the art of war much more thoroughly than them.

When Hei Baiyu found out that Liu Bei's three brothers, as well as Zhao Yun's reinforcements, were about to attack Cao's position at night, Guo Jia's plan to deal with it followed.

Cao Jun's position is actually far more strict than Liu Bei and they know, if Guo Jia didn't have other plans to use Liu Bei and them, Liu Bei rashly broke through to Xuzhou City that night, and there was already no return, how could he still get to Xuzhou City?

Guo Jia's plan is to let Liu Bei, a warrior who is not afraid of the strength and danger of Cao's army, kill Xuzhou City without hesitation, instead of the old and incompetent Tao Qian

, in charge of Xuzhou, after Cao's army evacuated Xuzhou, he could still keep this place from being swallowed up by another enemy, Yuan Shu.

For Guo Jia, Liu Bei and Yuan Shu are both pawns in his game of chess, and they are not enough to be called opponents, because their every move is in Guo Jia's plan, and Guo Jia wants to make these two chess pieces keep the vital Xuzhou as it is, neither expanding nor being annexed, in short, it cannot be made a threat to Cao's army.

Because the current Cao army will face a more difficult enemy, and there is no room for an enemy behind them that can threaten their safety.

Liu Bei's appearance balances this delicate relationship well.

Liu Bei replaced the old and incompetent Tao Qian, and after becoming the new master of Xuzhou, he could ensure that Xuzhou would not easily fall into the hands of Yuan Shu.

Because for Yuan Shu, he needed an opponent like Liu Bei to restrain him, so that he could stay here in peace and have no time to take care of Yanzhou.

These two people, who were supposed to be allies, were because of a small plan set up by Guo Jia, and only one letter from Cao Cao, which led the greedy Yuan Shu to send troops to attack Xuzhou.

In this way, the enemies who would have threatened Cao Cao will be two less at once, and in the future, they will only care about fighting each other, and they will not have time to fight with Cao Cao.

This is the result that Guo Jia wants.

That night, after Liu Bei entered Xuzhou City with the few remaining reinforcements, Hei Baiyu also took advantage of the opening of the city gate and the chaos, and quietly sneaked into the city.

If it weren't for Liu Bei's night attack on Cao's position, they wouldn't have had such a good opportunity to easily blend into Liu Beijun, who was fleeing in a hurry, and entered Xuzhou City together, and lurked in the people's houses, monitoring every move in Xuzhou City, and at the same time contacting the Chen father and son, who had an ambiguous relationship with Cao Jun, trying to win them over to serve Cao Cao.

The Chen father and son are cunning and cunning, like grass on the wall, as long as there is an advantage on which side, they will fall to which side, and decide who to work for based on interests.

Now Cao Cao's intention to evacuate Xuzhou was detected by their father and son

, it will be even more difficult to get their support, and perhaps, these two people who forget their righteousness for the sake of profit will take advantage of Cao Cao's retreat to bite back.

However, after Guo Jia designed Liu Bei to Xuzhou City, the situation was completely different.

Chen Deng, who has been thinking about the Ming Lord for a long time, after meeting Liu Bei, is like a person who has seen the sunshine after a long night, and his excitement is difficult to hide, so that he goes against his father Chen Jue's original intention of teaching him to be mercenary, and he actually assists Liu Bei wholeheartedly, and even does not hesitate to do things that are contrary to his father's political views, so that his father Chen Jue is very embarrassed, and he scolds him and does not approve of it, so he can only choose to acquiesce in his son's approach, after all, young people are inevitably impulsive and do not experience some setbacks. I can't feel the painstaking exhortation of my elders.

Therefore, when Guan Yu proposed to attack Cao Jun's military camp at night, Chen Deng, who was eager to show himself, also agreed with this risky approach.

As a last resort, Liu Bei could only let Guan Yu and Zhao Yun take the risk to try their luck before the Cao army attacked the city, and attacked the Cao camp at night, if it really succeeded, then they would still have a chance of life, otherwise, once hundreds of thousands of Cao troops began to attack the city, then Xuzhou City would only have a way to perish.

At this time, Chen Qi and Chen Deng both knew that the Cao army had plans to retreat, even if they didn't take this risk and went out of the city to attack the Cao camp at night, the Cao army would most likely withdraw in the next few days, because they received the news that Yanzhou was already in danger, and it was impossible for Cao Cao to ignore Yanzhou, which had been painstakingly operated for many years, and come to occupy a Xuzhou that had already been riddled with holes, so his father Chen Qi's original plan was to wait and see what happened, and when the Cao army really retreated, it would not be too late for them to reap the benefits of the fisherman.

This is the typical businessman's thinking, as long as there is interest, no matter who you have been loyal to, you can become an enemy in the next moment, and the only criterion for measuring friend or foe is whether there is any profit to be made.

But Chen Deng is impulsive, his boiling blood broke through his reason, changed his calm and calm personality in the past, chose a radical approach, and wanted to achieve greater results, not only for Liu Bei, but also for himself, to achieve greater prestige in Xuzhou, and at the same time to let the world know that his Chen Deng's intelligence is by no means under Cao Cao and his advisers, Chen Deng just wants to be a blockbuster.