Although there has not been a major war in the Song and Liao dynasties for more than a hundred years since the Chanyuan Alliance, the hostile relations between the two countries have not been reduced slightly. Not only have the troops stationed on the borders that have penetrated into each other's borders to burn, kill and plunder, but there are also many secret spies and secret battles.

Because the Song State opened up the trade routes, even Tokyo and Bianliang were hidden secret spies from enemy countries such as Liao and Xia, and a lot of information was sent out by them in various ways. Correspondingly, the Song State also sent many troops to these enemy countries. However, because the capitals in the north of Liao State were more xenophobic, they devoted more energy to Youzhou, Nanjing and the border areas bordering Song.

After understanding this, Sun Tu's face became solemn: "So, my Song Dynasty has always been hiding someone in Youzhou City to explore relevant information?"

"Yes, but they could only find some not-so-confidential information before, but this time they made a lot of gains. Last year, an official in charge of border troops in their South Court was bribed by our people because of his greed, thus obtaining a complete map of the Liao border defense military." Tong Guan nodded.

Sun Tu was even more energetic when he heard this, which was an extremely rare great gain. If the Song army could really defend the Liao border army, then once the war started, it would be targeted and break through the defense line at the lowest cost, and gain an absolute advantage in the battle.

"But the Liao people seemed to have received some news afterwards, so they stepped up the search for those who went south. In case of precautions, our people did not rush to pass on this information back, and the things were hidden in Youzhou City." Tong Guan looked at Sun Tu and said, "I went to Liao this time to get this defense map! But I am too eye-catching, and this matter must be left to Qianli to do. Don't ruin the big thing."

Sun Tu's expression tightened, and immediately bowed his hand solemnly and said, "You must not do your best!" He did not ask the other party why the Liao people knew why they had not quickly adjusted their troops if they knew the leak of the defense map. Because Sun Tu, who had been leading the troops for a while, had already known how complicated the mobilization of the troops and horses was at this time. Not to mention the large amount of time and materials, but this period was quite dangerous. Once the Song army seized the opportunity, the losses would be great. So after the Liao people knew that such an important defense map might leak, they could do was to try their best to prevent them from going south.

But after answering, Sun Tu said again: "Shuai Tong, since they attach so much importance to this defense map, they will definitely be on guard against us. Even if we really get it, it is not easy to take it back, right?"

"I have my own way. Just take the things back while avoiding their supervision." Tong Guan did not say everything. After all, it was related to the overall situation. Even Sun Tu, whom he trusted and valued, could not tell it.

After understanding his responsibilities, Sun Tu no longer dared to relax. He knew very well that the Liao people should be full of the inside and outside of the inn. Maybe his every move was under their surveillance. What he had to do next was to find loopholes and flaws.

So just two days after entering Youzhou City, Sun Tu and Wu Song and others began to walk out of the inn frequently and wander around the city. They often looked here and there, and bought some items with the characteristics of the Liao people.

Every time they left the inn, Sun Tu could clearly find that there were a few more pairs of eyes behind him staring at them. Although they did not say it clearly, the intention was already quite obvious.

As for Tong Guan, he was already busy. He would take various gifts every day to visit the Han officials in the city, make friends with them, and say some seemingly unnutritious nonsense. At this time, Tong Guan's versatile side finally showed that he really spoke to others and talked to ghosts, and really made friends with many Han people in the south.

Although the Liao people did not stop the Song envoy's series of actions, they also saw them and reported them to Yelu Xiongge and Yelu Dashi who were actually in the city. Many people were still worried about this. They had made suggestions that they should ban the Song envoys and let them stay in the inn. Yelu Xiongge did not make any statement in this regard, but at this moment he looked at Yelu Dashi who was smiling and said, "Lin Ya thought it would be better to deal with this matter?"

"Daishi thought that banning them would only make things more complicated. With the ability of the Song people, it was not too difficult to sneak out at night, let alone not letting them out, it would be of no benefit to us."

"Oh? Benefits? How do you say this?"

"Xiongge, you should have had a solution for a long time, that is, take this opportunity to attract some people. Whether it is the Han officials in the south who are still interested in the Han people, or the Song people secret spies who have been hiding in my Nanjing city, we can't find any trace of them. Originally, we couldn't dig them out, but now it's different. As long as you follow the trajectory of the Song envoy, they will have nowhere to hide." Yelu Dashi smiled and said his guess, and believed that Yelu Xiongge thought so.

The latter did not disappoint him, and immediately nodded and smiled, "Lin Ya, who knows me, is truly one of the few all-round talents in my dynasty in the past few decades. Yes, this is one of the purposes I have never avoided them, which is to hope that they will do more things in my Nanjing city. Now that I have internal and external troubles, I can no longer let these cancers be hidden in my heart in Nanjing. Even if I take some risks, I will give it a try!" In the end, the murderous aura in his eyes could no longer be covered.

Yelu Dashi sighed secretly. He knew very well how loyal Yelu Xiongge was to the Liao Dynasty. However, because there were treacherous slanders in the court, the emperor was suspicious of him, so he threw him to Nanjing to deal with the Song people. Otherwise, with his talent and identity, he would definitely have made great achievements in the court, and maybe he could even dissuade the emperor from hunting everywhere.

"Then let Dashi deal with the secret spies of the Song Dynasty. I believe that in Nanjing, all their actions cannot escape my eyes." Yelu Dashi suddenly volunteered, knowing that he had to take action to share some of the pressure for Xiongge.

"It's best. I'll ask you all the secret spies." Yelu Xiongge smiled, and his originally frown stretched a lot.

In the next few days, a strange tacit understanding appeared between the Song and Liao dynasties. Tong Guan, Sun Tu and others were still looking for various bad reasons to do what they should do, but the Liao people were not stopped. They would probably follow some suspicion behind them. And the Song people had no intention of driving or throwing away the tail behind them. They still followed their own rhythm, especially Sun Tu, who went out every morning and did not come back until the evening, which became a daily routine that was unstoppable. In a few days, they would have been visiting the entire Youzhou City.

This approach did not arouse the dissatisfaction of the Liao people, but instead made Wu Song and Lu Da, who had been with him, unable to bear it.

While eating in a restaurant that day, Lu Da couldn't help it and whispered: "Sanlang, when will such a day be the end? Every day I wander around in Youzhou City, and there are a few more pairs of eyes behind me staring at me, but I'm so uncomfortable." As he said that, he deliberately glanced at a table beside him, where four or five men dressed in civilians were staring at them without any concealment.

Wu Song also poured a glass of wine and echoed: "Yes, Sanlang, this kind of scrupulous thing is really not suitable for me to wait. If you weren't for your suppression, I would have wanted to fight these Liao people, which would have been too frustrating. The key is that we have gained nothing in the past few days and have wasted all time."

Sun Tu smiled and poured wine for the two of them again, and then said, "If we have any grievances, we will be the officials and give us money to visit Youzhou City. However, these Liao talents are really grieved. They are not free to act, they have to do whatever they want, and they can't do anything to us."

After pausing, he also glanced at the person who was following the stalking, lowered his voice and said, "And how do you know that I have gained nothing in the past few days?"

"Ah? Have you already got the thing?" Wu Song said in surprise. Although they didn't know what they were going to get, they also knew that the thing must be extremely important, which was related to the battle between the two countries, so they became a little excited when they heard it.

"That's not. Every time you and I go back to the inn, I will be searched. How could I hide it from them when I get something?" Sun Tu smiled and shook his head: "The harvest I mean is that I have had contact with my secret spies from the Song Dynasty, and I also confirmed that they are still safe and that things are still in control."

"Ah? This... how did you do it? Why did we know nothing?" The two of them were even more surprised. You must know that the three of them had almost gone in and out in the same place in the past few days, and they had not been separated.

"It's very simple. When I was wandering around these days, I had already contacted them by buying and selling items. Now I just waited for one opportunity to get things from them. As for why you don't know at all, it's because I used a hidden word when talking to others, and others couldn't hear anything strange." Sun Tu said, "Suifeng" and it really did what was written in the poem, "Suifeng sneaked into the night with the wind, moistening things silently." Everything happened unknowingly, and even the people around him did not notice it at all, let alone the Liao people who were following him.

However, the problem still exists. The most critical thing is how to deceive the world and get the defense map from the bottom of others' noses, and at the same time, it can also successfully send it into the inn and hand it over to Tong Guan's hands.
Chapter completed!