Guan Yu asked the falcon trainer, and the falcon replied: "General, the enemy's vanguard is less than thirty miles away from our army. Guan Yu asked, "How many people are in the vanguard?" The falconer looked up at the sky, looked at the trajectory of the harrier's flight, looked at it for a while, and replied, "About 20,000." Guan Yu frowned, he was only 3,000 people, he looked at the mountain road, he couldn't put many people and horses, and it was not a small difficulty to block a day. Guan Yu pondered for a while and said, "Guan Heng, quickly lead three hundred people and horses, and sprinkle thistles all over the front five miles. Guan Heng took the order. Guan Yu said: "The rest of the people and horses carry the mountain rocks and build them into a stone wall, pay attention to leaving gaps, so that Guan Heng and the others can retreat." More than 2,000 people worked together, and soon a stone wall was built as high as a foot. Guan Heng and the others also came back soon. Guan Yu pondered for a while and said: "Zhang Wu and Fan Da, each of you will lead a thousand men and horses, retreat five miles apart, and then build a stone wall, build a stone wall, and collect dry firewood for later use." And they took the order. Guan Yu asked Guan Heng to send someone to collect dry firewood and pile it behind the stone wall.

The 20,000 vanguard troops of Helian, the general of the commanding army, is named Duan Bei, who is the general under the account of the leader of the Duan department. The vanguard was responsible for finding the way and clearing the way for the army to clear the way. As the saying goes, open the road in the mountains and build bridges in the water. Duan Bei trotted on the horse, and the war horse under his crotch suddenly staggered, Duan Bei jumped off the war horse, and saw a black thistle on the horse's hooves, knowing that it was deliberately done by the Jizhou army. Duan Bei ordered people to cut down tree branches, tie them into a big broom, and sweep the leaves accumulated on the mountain road to the side of the road along with the thistles. After such a delay, an hour passed. After confirming that there was indeed no thistle terrestris ahead, Duan Bei's personal guard had already led a war horse, Duan Bei stepped on the war horse, and the team continued to move forward. Turning a corner, a stone wall stood in front of the road, and Duan Bei shouted: "Five hundred people shoot arrows, and five hundred people attack with chain hammers." "Immediately a thousand men were divided, and they rode forward, and the first to shoot.

Guan Yu listened to the sound of horses' hooves behind the wall, felt that the distance was almost over, and shouted: "Shoot!" "A thousand arrows were shot at the Xianbei people, and Duan Bei's five hundred cavalry, the first ones were shot into hedgehogs. Duan Bei was furious and shouted, "Chain hammer attack." Five hundred people left hand shield, right hand chain hammer spin up, rushed to the stone wall 100 meters, the chain hammer quickly got out of his hand, smashed to the back of the stone wall, more than ten pounds of iron hammer with the sound of the wind fell from the air, Guan Yu was taken aback, the big knife in his hand left block right split, the soldier is not as skilled as Guan Yu, about 300 people were hit, Guan Yu said loudly: "Ignite the fire, withdraw to the second stone wall." Seven hundred men lifted up the wounded robes, and those who were unfortunately hit on the head and died on the spot also put their bodies on their horses and withdrew to the second stone wall. Duan Bei saw that the fire was ignited, and it was not easy to extinguish it for a while, so he had to wait. After Guan Yu retreated to the second stone wall, he immediately ordered the stone wall to be heightened, and let the soldiers lie behind the wall and throw arrows to avoid being hit by the hammer.

Zhang Liao's army of 50,000 came to the foot of Baishan at this moment, saw the sign left by Guan Yu's march, and knew that Guan Yu was ahead. After traveling some distance along the mountain road, I saw an open terrain, and the slopes on both sides were not very steep, but it was rare that the slopes were flat and there were few trees. So he ordered the army to separate, and laid an ambush on the mountains on both sides, ready to roll stones and trees, and the war horses rushed down the slopes of the mountains to the hidden places behind the mountains, and were guarded.

Zhang Wu held on for less than an hour behind the second stone wall, and retreated to the third stone wall, Guan Yu looked at the sky, the distant mountains and the sun, and the sky in the west was covered with red glow, knowing that he had succeeded in blocking the attack. Duan Bei was no longer angry, two stone walls, a fire, let his army of 20,000 be delayed for a day, looked at the third stone wall, and then looked at the sunset, and simply ordered the army to rest, and the herald Pegasus reported to the back. Helian's army has entered Baishan at this moment, and the main general is Duan Chi, the leader of the Duan Division, who heard that the 20,000 army was blocked by 3,000 people for a day, Duan Chi was furious, and ordered Duan Bei to kill 3,000 Jizhou soldiers at dawn tomorrow to clear the road for the army.

Early the next morning, Duan Bei ordered an attack, a thousand men and horses ran to the back of the stone wall, but they were not attacked, Duan Bei knew that the people had already run away, and ordered to move the stone wall, and sure enough, the stone wall was empty. Duan Bei Pegasus reported to Duan Chi, Duan Chi knew the art of war, the Jizhou army would not block his army for no reason, he would definitely keep his back hand, and ordered Duan Bei to be careful and vigilant to prevent ambushes.

Duan Bei cautiously led the team forward, until he came out of the mountain and came to an open field, and did not find anything abnormal, and the herald immediately flew to inform Duan Chi. Duan Chi received Duan Bei's report, and a hanging heart was put back in his stomach, so Duan Chi waved his big hand, and the army sped up and walked towards the outside of the mountain.

Zhang Liao stood in a secret place on the top of the mountain, watching the Xianbei army walk through the mountain road like a long snake, the front section of the long snake, a large banner towering, the top flag fluttering in the wind, with a big paragraph in the book. Daxu moved, slowly entering the ambush circle, and the snake's tail was still a long part outside the ambush circle. Zhang Liao couldn't care about it, waved the flag, and Duan Chi's army, which was marching, was smashed on the head of the snake by the suddenly rolling boulder, Duan Chi sighed in his heart, Duan Bei, you bastard, you hurt Lao Tzu. After Duan Chi deviated, he hurriedly ordered to return to the army when he saw this. Zhang Liao raised the command flag and waved it again, and at the position of the snake's waist, the big stone rolled, dividing Duan Chi's army into three sections. Zhang Liao ordered to put off the cannon, and suddenly the rolling stone and wood on the hillside rolled down, hundreds of meters high, the accumulated potential energy, so that the big stone and wood rolled down the hillside and collided with each other again, agitated, Xianbei people and horses were lucky to avoid the big stone wood in front of them, and how to hide the big stone wood rolling behind him.

When Duan Bei heard that Duan Chi was in ambush, his eyes were dark, and he almost fainted, his guilt was too great, and he actually let the head of the family be attacked, he gasped fiercely, and roared: "Come back!" "The army of the snake tail, seeing that the lord was in ambush, did not want to crawl over the pile of rocks and came to the rescue. It turned out that the Xianbei military law was extremely strict, and the Lord would besiege those who could not be saved, and exterminate the three tribes. Duan Chi pulled out his long knife and loudly commanded the soldiers to attack the slopes on both sides. Zhang Liao couldn't help but be overjoyed when he saw that the snake-tailed army was not retreating, and ordered his soldiers to pour the bundled firewood, pour oil on it, light it, and push it down the mountain. For a moment, the fire filled the sky, and thick smoke billowed throughout the valley. The spring breeze is getting warmer, the snow has already melted, the mountain road is covered with firewood and leaves, and the mountain wind blows strongly, the firewood and grass on the hillside gather to the valley, the fireball rolls to the valley floor, igniting the firewood and grass in the valley, and the Xianbei army is caught in the fire.

Duan Chi ordered the soldiers to attack the hillside, but the hillside was gentle, and there was no place to hide from the rolling stones and trees, and seeing the soldiers being crushed by the rolling stones and trees, Duan Chi roared angrily and ordered the army to retreat and withdraw from the battlefield. At the exit at both ends, Zhang Liao arranged for two thousand soldiers to take care of it, and the rolling stones and trees were piled up into a high hill, and the trees were roasted by the fire for a long time, and they also burned violently. Duan Bei desperately crawled over the pile of rocks, ripped over the clothes of a deceased, poured the water from the water bladder on the clothes, Duan Bei covered his mouth and nose with wet clothes, and smoked and burst into flames to find Duan Chi. Duan Chi's personal guards around him had already been injured, Duan Chi was still at ease commanding the soldiers to retreat, Duan Bei saw the head of the family, and shouted hoarsely: "The head of the family comes with me, I will open the way for the head of the family." Duan Chi knew that Duan Bei was brave, followed Duan Bei, and came to the valley behind, Duan Bei saw the piles of rocks like a hill, drank the guards, and poured all the clear water of the water bladder on Duan Chi's body, Duan Bei bent down to pick up Duan Chi on his back, and crawled towards the pile of rocks.

Zhang Liao saw hundreds of people surrounding one person, turned over the pile of rocks, stepped on the war horses left behind by the rear team, and fled backwards desperately, guessing that he had escaped from the Xianbei general, picked up a hard bow, and chased along the hillside. Zhang Liao showed the true colors of a first-class general, among the miscellaneous trees and stones, the rabbit fell and fell, running like flying, looking at the range of the bow and arrow, a loud shout, the bow was full, the wolf tooth arrow with a scream pounced on Duan Chi's back, Duan Bei was already in a state of madness at the moment, heard the scream, knocked down Duan Chi's back from the war horse, the wolf tooth arrow popped, through Duan Bei's back, Duan Chi only felt a huge pain in his back, the guards around him reacted, pushed Duan Bei away, Duan Chi's back was bloody. Zhang Liao shot an arrow, and the remaining momentum was unwaning, killing Duan Bei and severely injuring Duan Chi.