After five thousand cavalry entered the city, it took less than half an hour to control all the four gates and places in the city. At some point, the officials and guards in the city were still at a loss. Didn't it mean that the Tang army was attacking Tianjin pass in the south? Why did they suddenly invade the city from the west?

An hour later, Lu Zhong's tieyingrui finally took over the defense of the whole city. While he arranged the soldiers to count the Treasury, he asked Shi a to lead a group of shadow guards to carefully interrogate the captured officers and generals of the surname Yu, hoping to get some useful information from them.

By the end of the year, it was completely dark. Suddenly, the general on guard at the head of the city came to report: "general Qi, I found that most of the troops were approaching in the west of the city, and the cavalry had confirmed that it was the Central Military Department led by general Tian Yu!"

Lu Zhong was overjoyed. He did not expect that Tian Yu's Chinese army arrived immediately after him. He quickly got up and said to the generals around him, "let's go to the west gate to meet general Tian!"

The party quickly arrived at the west gate. Sure enough, several miles to the west, a large troop of soldiers and horses were winding towards the county seat of the family of Yi. The leader was Tian Yu and his bodyguard. Lu Zhong immediately ordered to open the gate and welcome the army of Tian Yu into the city.

At the gate of the city, Lu Zhong saluted Tian Yu and said, "general Tian came all night!"

"Congratulations to general Lu, another city!"

"Happy together! However, to tell you the truth, the last general didn't play any role either. It's all the work of the cavalry! " Lu Zhong is also a happy face said, although it is said that cavalry meritorious, but he is a forward general, his credit is not appropriate.

"Well, let's go to the city first. I have something to discuss with general Lu. Let's go to the county government. By the way, what about general Shi a? Why didn't you see him? "

"General Shi is interrogating the captured officials and generals of the state of Zhao, so he didn't have time to meet them together. Please don't blame him!" Lu Zhong quickly replied;

Tian Yu waved his hand: "it's OK, it's all for the king. There's no need to pay too much attention to such details."

They soon returned to the county government. Tian Yu withdrew his guard. Seeing this, Lu Zhong asked all the people around him to withdraw. Then he said to Tian Yu, "but what's the military situation?"

Tian Yu face dignified said: "this matter is not small, also ask general Lu sent General Shi together to call."

As they were talking, the voice of the guard came out of the door: "general Qi, general Shi'a is here."

"Come on, please!" Lu Zhong said in a hurry;

as the voice dropped, the door was opened, and Shi a came in from the outside with a happy face. Seeing that Tian Yu had arrived, he quickly went forward with a salute and said, "general Tian has arrived, just now he is interrogating the prisoners, so I can't go to meet him. Please forgive me."

"No matter. Looking at general Shi, we should have gained a lot." Tian Yu said with a smile;

"yes, according to the county magistrate and the county deputy captain, tianjingguan has sent messengers to the eldest son city this afternoon to ask for help. It is said that the vanguard of the Tang army has arrived at tianjingguan this morning, and it is estimated that the siege should begin today. It is believed that there are tens of thousands of troops in tianjingguan."

"Oh, great!" Both of them were overjoyed. At the beginning of the war in tianjingguan, all the attention of the Shangdang would be focused there, which would be more beneficial to the actions of their own army.

"Moreover, according to the information from my interrogation, at present, except for the eldest son City, there are 12000 soldiers in Shangdang, there are only 2000 soldiers in other cities, so the possibility of sending reinforcements should be small." Shi added, "so if Zhang Yang wants to send reinforcements, he can only send reinforcements from the eldest son city."

After hearing Shi A's words, Tian Yu immediately went to the front of the next map and slid from the eldest son city to tianjingguan in the South with his finger. After a long time, he said, "if the eldest son city will really send reinforcements to tianjingguan, it's a good opportunity for us."

Lu Zhong also responded: "ambush reinforcements?"

"Yes," Tian Yu nodded heavily and said, "in fact, I just asked general Lu to invite general Shi ah. There is also an important intelligence to tell the two generals."

Seeing that they both looked at him, Tian Yu said in a low voice: "in the early morning of this morning, Luoyang received the tense information sent back by Jinyang. Last night, the city of Jinyang suddenly sent ten thousand troops to leave overnight. It is said that they are heading south. Therefore, Luoyang speculates that the 10000 troops should have come to support the Shangdang. As for the reason, it should be that, as previously speculated, someone in the Zhao army has seen the intention of our army and found that it is possible for Baixing to pass through the army. "

After hearing this, they both felt awe inspiring. If the ten thousand troops could arrive at their eldest son in time, the king's idea of winning the upper party would be defeated.

"The two generals should also know the importance of this matter. Originally, I was still thinking that if the more than 10000 troops in the eldest son's city were directly attacked, it would be a heavy loss, and it would not be able to attack in a short time. Now that tianjingguan is asking for help, if the eldest son city can really send reinforcements, and we can eliminate the reinforcements in the field, then we can directly go north and capture the eldest son as quickly as possible. In this way, even if the 10000 reinforcements from Taiyuan enter Shangdang, they can only be trapped in other small counties and cities, which will be beneficial to our army. ""But will Zhang Yang of the eldest son city really send reinforcements to support tianjingguan?" Shi a hesitated to say;

"certainly," Tian Yu replied with a firm face: "Shangdang is the third largest county of Zhao state. If tianjingguan is lost, Shangdang will not protect, and Rao Shi Zhang Yang can not bear the consequences. Besides, the Shangdang is still stable. He only needs to keep 5000 troops to stabilize the county and city. So I'm sure Zhang Yang and Hao Meng will send troops to support tianjingguan. "

"However, there are still some variables here," Tian Yu pondered again. "Since Jinyang has sent reinforcements, it will certainly send messengers to warn the party first, but I don't know if Jinyang's messengers can arrive at the eldest son in one day? If the eldest son city has been warned, Zhang Yang will guard the eldest son and wait for the reinforcements of Jinyang. "

"Impossible." this time, Shi a is sure: "it's four or five hundred miles from Jinyang to the eldest son. Zhao has no means of transmitting information like Feilu. He can only rely on fast horses to transmit information. In addition, there is a hundred mile Valley Road between the two places. Although he can walk the army, the speed of the horses can't be too fast, so the fastest information is needed from Jinyang to the eldest son In the past two days, from last night to now, there is no time at all. "