Gucheng is a border city of the Cuizhu Kingdom across the mountain from the Niuling Kingdom at the end of the Xuantan River Valley. The strategic location is very important, and the Gentan River flows through the walls of Gucheng, naturally forming the river around Gucheng. In order to resist the attack of enemies from all sides on the kingdom, the Cuizhu Kingdom sent heavy troops to guard the strategic place of Gucheng, and the chief soldier of the city was called Guan Xiong, who was a brave and resourceful veteran, and made great contributions in the kingdom's many years of war against foreign invasions. The Cuizhu Kingdom has stationed more than 5,000 troops in Gucheng, and the veteran Guan Xiong knows the importance of guarding this pass, and usually trains troops and martial arts, and is ready for a possible fierce battle at any time.

After receiving the news of the death of the old king of Cuizhu, Niu Ling and Lin Shi felt that they should organize a joint army to attack Cuizhu again as soon as possible after an emergency occurred in the country, so as to catch the country in a complicated situation by surprise with lightning speed and strive for strategic advantages. The two coalition forces gathered on Yunmeng Mountain, after making all the preparations, Tian Long personally went out to lead a group of troops, rushed down from the mountain, and set up camp on the flat land of the mountain col opposite Gucheng, the pennant fluttered, the gongs and drums were noisy, and the time for the duel again finally came.

According to the gentleman's way of saluting first and then soldiering, Marshal Tian Long first sent a war letter to Guan Xiong, the commander of Gucheng, and the reason expressed in the war book was high-sounding, stating that Gucheng and the Xuantan River Valley were originally the territories of our two countries, because the Cuizhu Kingdom had repeatedly used improper means to seize, and now the two countries sent troops to fight again, and they will be recaptured in the near future.

Seeing that the enemy forces were overwhelming, the general army of Guan Xiong was gaining momentum, and adopted the method of not changing the situation to hang up the anti-battle card at the city gate for several days in a row. Because General Guan believed that by using this method, first, he could gradually weaken the enemy's current and inevitable spirit, and second, he could send 100,000 people to report to the imperial court in a hurry and wait for the support of the imperial court's army.

After the court got the news, after the new king went to the palace for the first time to discuss with the ministers, the queen mother decided that the king would levy it in person, and Prime Minister Miao Cheng and the queen mother would follow the expedition to organize important forces in the kingdom, and rush to Gucheng in the early morning of the next day.

Besides, the coalition army led by Marshal Tian Long should have been put into battle as soon as possible, but every day he was faced with the battle-free card on the wall of Gucheng, and he knew that this was a delaying tactic used by General Guan's troops, waiting for the support of the imperial court. If this continues, it will be very unfavorable for the coalition forces, and it is necessary to seize the current favorable opportunity to take decisive measures and fight the first battle well, and then we can take advantage of the victory and succeed in one fell swoop. So action must be taken as soon as possible.

In the end, it was decided that General Su Claw would lead a column and come to the gate of Gucheng to take a strong attack. In the early morning of the next day, General Su Claw led 3,000 infantry, in front of the city of Gucheng, began to call for battle, General Guan still hung the free battle card in front of the city gate, and the free battle card was smashed by the angry General Su Claw without doing anything. This marked that the coalition forces of the two countries would no longer accept the declaration of exemption from war by Guan Zongbing, and the envoys of the Su Claw branch shouted and cursed in front of the city gate, demanding that Guan Zongbing either go out of the city to meet the battle, or open the city gate to surrender to the coalition army. Seeing the momentum of the enemy army, General Guan knew that the strategy of avoiding battle adopted would no longer work, and the enemy army would definitely take further measures. At present, the kingdom's reinforcements have not yet arrived, and the strength of his own city is far inferior to the enemy's army. Now that the enemy army is calling for war again, you must deal with it in advance, but you must preserve your own vitality. If a soldier is sent to lead the troops to open the door to meet the battle, it will definitely not be the opponent of Su Claw, a martial artist, once defeated, the enemy army will surge and pour into the city, then it will be a complete defeat. Now the only way is to take an effective way, while responding to the battle, dragging the enemy army, while waiting for reinforcements from the imperial court.

When Su Claw's army scolded outside the city gate and saw that the defenders of Gucheng did not move, Su Claw organized soldiers to move to the siege ladder and prepared to attack through the moat.

After retiring from the army, Marshal Tian Long summoned the soldiers to discuss the next strategy in the tent, if he did not make a breakthrough as soon as possible, when the reinforcements of the imperial court kingdom of Gucheng arrived, coupled with the favorable terrain of Gucheng, it would be very difficult to break through this city in a short time. Marshal Tian Long asked everyone to discuss whether there was an effective strategy in the account. Su Claw was repelled by the bows and arrows of the defenders of Gucheng for the first time, first asked for battle again, and led the soldiers to attack again the next day, everyone thought that this was not a good way, because the city of Gucheng was easy to defend and difficult to attack, and there was a natural river as a protective barrier. At present, if a strong offensive is adopted, General Guan will definitely take advantage of the favorable conditions and continue to take measures to delay the coalition forces and wait for reinforcements from the kingdom.

At this time, the off-the-books reported that the urgent documents of the scholar king arrived, and Marshal Tian Long walked out of the tent as quickly as possible, saluted to receive the king's documents, and opened the documents, on which were the suggestions put forward by the scholar king for the current countermeasures because the war had not made progress since the allied forces were dispatched. After reading the documents delivered by the kingdom, Marshal Tian Long's mood suddenly brightened, and the gloomy clouds on his face immediately dispersed. Marshal Tian Long strode into the tent and ordered everyone to disperse and return to the camp and wait for dispatch.

King Shusheng's document put forward very pertinent instructions for Tian Long's current tactics, suggesting that the coalition army send a detachment to find an effective path without knowing it, bypass the pass of the ancient city, directly insert it into the lower reaches of the river valley, and ambush the soldiers on the mountainsides on both sides of the mountain where the support army of the Cuizhu Kingdom must pass, and wait until the arrival of the Cuizhu Kingdom army, attack them unexpectedly, and block their timely rescue of the Valley City. Hold back the army of the Cuizhu Kingdom, and then launch a powerful offensive on the side of Gucheng, the defenders of Gucheng do not have the timely backup of the kingdom army and the supply of food and grass, so the soldiers are naturally confused, so they can easily take the city.

Now Marshal Tian Long has a problem in front of him that must be solved: how can the detachment that went to block the reinforcements of Gucheng go around Gucheng, and the only way at present is to use the sound of the east to attack the west, avoid the real and make a false one, and Marshal Tian Long himself will personally lead the team to feign a siege of the city, and on the other side, General Su Claw will lead a detachment to quickly pass through the Huancheng River on a raft when the enemy is tired of preventing Tian Dashuai from attacking the city, and then march from the river valley to the destination.

The next day, when the sky was just dawning, the coalition army that had been prepared first organized by Tian Dashuai to organize soldiers, directly on the ladder, not to give the defenders of the valley city any chance to breathe, from the camp stationed straight to the city gate, set up the ladder, hundreds of soldiers climbed directly on the ladder, fiercely attacked the city gate, in order to reduce deaths, Tian Dashuai organized archers to continue to fire arrows on the enemy on the city wall, Guan Xiong thought that the coalition army was bound to win this time, and hurriedly organized the defenders in the city to block the enemy's bows and arrows like raindrops on the city wall, While fighting back at the enemy troops who climbed up from the ladder, and the rolling stones stored on the city wall repelled the enemies who climbed up the ladder again and again, Marshal Tian continued to prevent the soldiers from crowding outside the city, creating the illusion that he would not stop until he reached his goal. At the tense moment when the soldiers of Gucheng were hurriedly responding to Tian Dashuai's siege, General Su Claw quietly organized a detachment to ride the pre-prepared raft at the fastest speed, went down the Xuantan River, successfully bypassed Gucheng, entered the river valley, and marched forward non-stop. Here, Tian Dashuai saw that the detachment led by General Su Claw had successfully passed through and achieved his goal, so he immediately withdrew his troops and returned to the camp to prepare for the next attack.

General Su Claw led the detachment all the way unimpeded, directly to the end of the lower reaches of the Xuantan River Valley, found a favorable terrain on the halfway of Zizhu Mountain, where the reinforcements of the Cuizhu Kingdom must pass, and set up camp in the mountains and forests in two ways, spying on the movements of the kingdom's reinforcements all the way, and spying on the sentry movements of the defenders of Gucheng all the way, so as to prevent General Guan from delivering any urgent documents to the kingdom coalition army.

Because General Guan kept urging reinforcements with urgent documents every now and then, Prime Minister Miao and the Queen Mother cooperated with the king non-stop, and the soldiers rushed all the way without staying overnight. When the kingdom's reinforcements approached the Zizhu Mountain Pass, General Su Claw, who had been waiting here, led the detachment to rush down from the mountainside with lightning speed, and lined up at the intersection where the reinforcements must pass. The Queen Mother and Miao Cheng were quite quick and decided, and led the reinforcements to retreat in a hurry, and camped at the mouth of a suitable valley. Seeing the reinforcements retreating, Supaw's coalition detachment did not chase after them, but simply moved the barracks to the mountain col flat to block the advance of the reinforcements at any time.

The garrison led by General Guan could not wait for the arrival of reinforcements, and the generals could not get an effective supply of grain and grass in time, the army of Marshal Arita Ryu was stationed opposite the city, and the detachment of General Su Claw formed a blockade for it, and the soldiers in the city suffered for many days, understood the current situation, and there was a call to simply open the city gate and raise a white flag to surrender.

Because of the unique position advantage of Gucheng, if the defenders of the city could not defend it, the allied forces of the two countries led by Marshal Tian Long would only cut off the supply lines of the defenders, cut off their food and grass, and then open the city gate to surrender, or abandon the city and flee for their lives. It is not a way to take a strong attack at all, and it is not at all a way to adopt a long-term siege without attacking, so that it will be defeated without a fight, and it is afraid that the timing will change and there will be unfavorable situations. After careful consideration, Marshal Tian Long finally felt that it was necessary to break through Gucheng in a short period of time, so as to facilitate the progress of the war between the two coalition forces, and at present, if Gucheng could be broken in a short period of time, as long as a method could be taken to open the city gate and let the coalition army enter the city, it would be easy to occupy this city.

At this time, Tian Dashuai thought of a person, who is currently in the imperial palace in the imperial forest army to escort the king at night, this person has made a light achievement, especially at night, can fly the eaves and walk the ridge, climb the city wall, and walk on the cliff as if walking on the ground, so the rivers and lakes called him "often fly at night" Tian Dashuai wrote a document, sent a special person to send it to the imperial court urgently, and within a few days, the scholar king sent the night Chang Fei to Tian Dashuai's camp.

Late at night that day, the night was so dark that he couldn't see his fingers, Tian Dashuai organized the soldiers to take advantage of the night to quietly come to the valley city around the city and hide the bushes on the opposite side of the river, often flying like a flying swallow at night, carrying a big knife, wearing a black windbreaker, when the guard soldiers on the city gate wall were dozing, aiming at the opportunity, flying up and jumping on the city wall, the knife fell, and the head of the soldier guarding the city wall was cut off, without a sound. Then unconsciously opened the city gate, put down the drawbridge, and then released a secret signal to Tian Dashuai who was in ambush, and the ambush soldiers led by Tian Dashuai got the signal that the city gate had been opened, and at the fastest speed, lit the torches that had been prepared long ago, and with one blow, crossed the city, rushed into the city gate, and entered the city. Guan Zongbing was awakened in his sleep by the killing cries of the coalition army, and saw that the city was full of enemy troops holding torches, which illuminated the night sky of Gucheng into a red. When the already exhausted soldiers saw the arrival of the coalition forces, they all knelt down and raised their hands in surrender. Guan Zongbing knew that the general situation had gone, so he only led a few personal soldiers to escape from the path behind the city under the cover of dense mountains and forests.

Gucheng was lost, and Marshal Tian Long led the combined forces of Niuling and Linshi to garrison Gucheng