Guo Yan's attention was completely attracted by Xiahoudun and others, and the whole day and night were all focused on staring at the frontal battlefield, and completely relaxed his vigilance on the side, Cao Ren seized this favorable opportunity to dig the soldiers in turn, and used the time of this day and night to dig forward a full 200 meters, and there was only 200 meters left from the Tiger Prison Pass, Cao Ren was overjoyed and said to the sergeants: "Brothers, work hard, we are about to see the sun!" ”

At dawn this day, it was Guan Yu's turn to be on duty, and now the Tiger Prison Pass has been divided into two groups of people on duty in turn, namely Guan Yu and Guo Yan, the two of them change the guard in shifts to ensure that they get enough sleep, so that the body can maintain full energy, Guan Yu and the others will board the Tiger Prison Pass again, just arrived at the Tiger Prison Guan Yu asked the soldiers about yesterday's situation, when he learned that Guo Yan put the main force on the front throughout the day and night, he didn't feel a little angry, but he still suppressed his anger, Guan Yu quickly changed the guard, just after the change of defense, he arranged for the man to keep an eye on the south side, or Zhang Liao is in charge.

At this time, Cao Ren was still in full swing to arrange the excavation work, because there was no surveillance, Cao Ren also relaxed his vigilance, no longer shrunk his hands and feet, but let go of his hands and feet to do a big job, the whole forest was surging up, the movement was also very noisy, this morning was a sunny day, the sun slowly rose, reflecting the whole earth, the wind was much smaller, from the previous wind to the breeze, blowing on the face of the person is very comfortable, the south side of the tiger prison pass woods, faintly crowded with people, From time to time, there are branches and leaves moving, which is very uncalm, and this strange phenomenon immediately aroused the vigilance of Zhang Liao, the general guarding the tiger prison

Zhang Liao is a smart man, the weather is so sunny in the early morning, there is a slight breeze, but there is such a big movement on the other side of the woods, this is by no means a normal phenomenon, the only explanation is that there are people acting there. And from another aspect, it also confirms this point of view, what point of view? That is, the birds are almost not heard on the other side of the woods, and some birds run out of the woods immediately and scream, so there must be people in the woods and there are not a few, Zhang Liao did not dare to slack off when he thought of this, he found Guan Yu and reported the situation.

After hearing this, Guan Yu thought to himself: Sure enough, it was the move of Ming Xiu Plank Road to secretly Chen Cang. Cao Cao is really treacherous! As he expected, the situation on the front and north is just a disguise, their real action is in the south, Guan Yu came to the south side of the city defense while thinking, but from a distance, he saw that there was movement in the woods, the branches and leaves were messy, as if there were still crowds, the whole forest was no longer as quiet as usual, Guan Yu said to Zhang Liao: "There must be an ambush in the woods!" ”

"General, what should we do?" Zhang Liao asked.

Guan Yu pondered for a while, and said a little puzzled: "What is Cao Cao going to do in ambush in the woods?" And the movement is so big. Looks like they must have made some moves in the woods! ”

"General, why don't I lead my brothers directly into the woods and kill them all!" Zhang Liao said.

Guan Yu heard it and said, "No! The woods are so big, there must be an ambush, rashly attack and ambush! ”

"What should we do according to the general's wishes?" Zhang Liao then asked.

Guan Yu pondered for a while and said: "Don't be in a hurry to do it first, since this enemy is ambushed in the woods, there must be some preparations, if it is an ambush, it must be necessary to lure the snake out of the hole, that is, it has to attract us out of the lu, and then send out an ambush to attack it, but the open space on the south side is not conducive to large-scale operations, and it can't be used at all, so their ambush has no meaning, so they must not be preparing for an ambush." It's something else! ”

"The general is right! If it's not an ambush, what are they doing? Zhang Liao continued to ask.

Guan Yu continued: "Don't startle the snake first, first send someone to investigate the truth and then make a decision!" ”

"That's the best! I'll arrange for manpower! Zhang Liao said briskly.

Guan Yu advised: "Don't startle the snake!" Remember! You must be cautious not to leak the rumors! ”

"No!" Zhang Liao received the order and went to arrange for the manpower to be opened. Guan Yu patrolled the pass, and the figure of General Cao still appeared on the frontal battlefield that day, and Xiahoudun and others continued to appear on the horizon outside the Tiger Prison Pass, Guan Yu now understood everything: the hook is not in the front, let alone in the north, but precisely in the south, what are you doing in the woods? Not good! Suddenly, a bad thought flashed into Guan Yu's mind, this south side was so close to the city gate. And there are woods as a cover, Cao Cao must be there to carry out earthwork, they are using the way of earthwork to dig and prepare to enter the Tiger Prison Pass through the tunnel, this plan is not to say that it is not evil, but Guan Yu immediately thought of a countermeasure. This already has an answer in "Romance of the Three Kingdoms", and Guan Yu quickly thought of a countermeasure

Guan Yu thought of the battle of Guandu in "Romance of the Three Kingdoms", Cao Cao and Yuan Shao fought against each other, and Yuan Shao's advisers suggested that Yuan Shao use this method to attack Cao Cao, but unexpectedly Cao Cao's adviser Liu Ye saw through it and soon had a way to crack it, Cao Cao, you just wait! Guan Yu did not take Xiahoudun and others in his eyes, only guarded against the war in the south, he did not immediately increase the strength of the southern city defense to prevent the grass and snakes, but secretly strengthened the vigilance of the southern underground city defense, and arranged heavy troops to guard it.

The investigators sent by Zhang Liao also quickly replied, and the answer was really as Guan Yu expected, it was Cao Cao's subordinates Cao Ren and Yue Jin who were carrying out the underground excavation task, Guan Yu said after hearing this, Zhang Liao said: "Don't move first, I expect them to continue at night, and then arrange personnel to investigate again to see where their progress has been, and they must finalize the specific location where they are going, pay attention to the mystery that must be carried out, and do not startle the snake, and then report to me as soon as possible!" ”

When Zhang Liao heard this, he said: "Then we won't do anything during the day?" ”

"Don't rush to strengthen the defense on the south side so as not to arouse suspicion, it's okay to do the same as before, can you relax! Rest assured, the enemy won't do anything during the day except digging, so just relax! Guan Yu said Zhang Liaodao.

Zhang Liao was a little puzzled when he heard this, he didn't understand it a little, why didn't he take the opportunity to wipe out Cao Cao's soldiers and horses in the woods and sit here and wait for death, and asked to relax, but since the boss spoke, he had no scruples, he still believed in Guan Yu's talent in the matter, what he said should be right, Zhang Liao took the order and left, and the sergeants above the entire Tiger Prison Pass also relaxed their vigilance and relaxed their mood

Cao Cao saw that Guan Yu's tiger prison was still closed as usual, thinking that Guan Yu was in a plan, so he urged Cao Ren to speed up the progress, and Cao Cao asked Cao Ren: "Can you get to the pass tonight?" ”

"Absolutely no problem, I will definitely be able to get through the customs tonight!" Cao Ren swore solemnly.

Cao Cao was overjoyed when he heard this: "Okay! That's great! If we can successfully penetrate the pass tonight, it will be a great achievement, and if we can successfully break through the pass tonight, then I will immediately ask the alliance leader to send more troops, and without further ado, we will surprise the Kwantung Army! If you can dig into the pass, just stay late at night, choose the corner to open the ground passage first, don't rush into the pass, after opening the passage, first do a good job of concealment, just wait for the outside army to form a response, and then open the passage with lightning speed, rush straight to the tiger prison gate, desperately open the city gate, welcome the army into the city, by that time Dong Zhuo has three heads and six arms, and it is too late to rescue! ”

"The lord is really clever, admire, admire! Everything is done according to the will of the lord, and there is no ambiguity! Cao Ren was instructed to continue to urge the personnel to excavate.

Cao Cao thought that he had gained power, and quickly whipped back to report to Yuan Shao, he came to the camp of the Chinese army to make a detailed statement to Yuan Shao about the progress of the plan, Cao Cao's description of the sound and color, Yuan Shao was surprised to hear it, Cao Cao said Yuan Shao after the most reluctant: "This is a great opportunity, defeat Dong Zhuo in one move, and hope that the alliance leader will send troops to attack the Tiger Prison Pass tonight!" ”

"Good! When there is such an opportunity, the order is to go down to the army to immediately reorganize and prepare, and the night assembly is completed, and there must be no mistake in attacking the Tiger Prison Pass tonight! Yuan Shao ordered.

The princes soon received Yuan Shao's order and received orders to prepare for the departure

Besides, Cao Ren's supervisors continued to dig forward without any scruples, as if they were crazy, and kept moving forward, after a whole day of excavation, at dusk Cao Ren's tunnel had been opened to a place 50 meters away from the Tiger Prison Pass, at this time the soldiers were already exhausted, and the continuous fighting made them exhausted, one by one they were tired, Cao Ren couldn't help but be angry when he saw this: "If you can't complete the task tonight, don't worry, just correct the law on the spot!" ”

Cao Ren gave a death order to the sergeant who was excavating, and the sergeant had to continue to dig hard, and they still weighed the weight of the weight of fatigue and life, and the speed of the army was not as good as before, but it still did not stop under Cao Ren's persecution, and continued to move forward.

At seven o'clock in the evening, the army had advanced to the boundary less than 30 meters away from the Tiger Prison Pass, the Tiger Prison Pass was close at hand, Cao Ren saw that the light was in front of him, so he replaced all the sergeants, and pulled Yue Jin's team up, this team waited for work, the speed of digging was very fast, and the distance of 30 meters after the most Lu was racing against time to excavate, of course, they made a lot of noise, but when they were struggling to excavate, a team had quietly marched to their heads to listen to their voices— Zhang Liao had already sent out a detailed investigation, and at this time, they were only 10 meters away from the Tiger Prison Pass, and everything was so thrilling. (To be continued.) )