“They were at war, and Gongsun Zan got the worst of it, so he acted on the defensive, building a high wall about his army and on that erecting a high tower, which he called the Yijing Tower. Therein he placed all his grain, one hundred thousand carts total, and took up his own quarters. His fighting troops passed in and out without ceasing, some going out to give battle, others returning to rest. One of them was surrounded and sent to ask Gongsun Zan to rescue him. Gongsun Zan said, 'If I rescue him, hereafter every one will want to be helped and will not exert himself.' So Gongsun Zan did not go. This disgusted his soldiers, and many deserted to the enemy so that his army diminished. He sent letters to the capital to crave help, but the messenger was captured. He sent to Zhang Yan to arrange with him for a two-pronged joint attack, and those letters with the plans also fell into Yuan Shao's hands; and the plans were adopted by Yuan Shao, who gave the signals agreed upon. Thus Gongsun Zan fell into an ambush, lost heavily, and retreated into the city. There he was besieged, and a subterranean passage was pierced into the tower where he lodged. The tower was set on fire, and Gongsun Zan could not escape. So he slew his wife and little ones and hanged himself. The flames destroyed the bodies of the whole family.
“Yuan Shao has added the remnants of the vanquished army to his own and so become yet stronger. His brother Yuan Shu in the South of River Huai, however, has become so arrogant and cruel that the people have turned against him. Then Yuan Shu had sent to say he would yield the title of Emperor, which he had assumed, in favor of Yuan Shao. Yuan Shao demanded the Imperial Hereditary Seal also, and Yuan Shu promised to bring it in person. Now Yuan Shu has abandoned River Huai and is about to move to the North of Yellow River. If he succeeded, the two brothers will control adjoining regions and be dangerous.”
It was a sad story, and Liu Bei remembered with sorrow that, in the days of success and prosperity, the dead chieftain, Gongsun Zan, had pushed his interest and shown him much kindness. Moreover he was anxious to know the fate of Zhao Yun. In his heart he thought, “What better chance am I likely to get of setting myself free?”
So Liu Bei rose and said to Cao Cao, “If Yuan Shu goes over to join his brother, he will surely pass through Xuzhou. I beg you to give me an army with which to smite him on the way. That will finish Yuan Shu.”
“Memorialize the Emperor tomorrow, and I will give you an army,” said Cao Cao.
So next day Liu Bei went to an audience, and Cao Cao gave him command of fifty thousand horse and foot, and sent Generals Zhu Ling and Lu Zhao with him.
At parting with Liu Bei, the Emperor shed tears.
As soon as Liu Bei reached his lodging, he set about preparations for immediate departure, taking his seal as General and preparing his weapons. Dong Cheng went three miles away from the city to bid him farewell.
“You must not mind my going; this journey will assuredly help on the scheme,” said Liu Bei.
“Keep your mind fixed on that,” said Dong Cheng, “and never forget what His Majesty requires of us.”
They parted. Presently his brothers asked him why he was in such a hurry to get away.
Liu Bei replied, “I have been a bird in a cage, a fish in a net. This is like the fish regaining the open sea and the bird soaring into the blue sky. I suffered much from the confinement.”
Then he ordered Zhu Ling and Lu Zhao to march the troops faster.
Now Guo Jia and Cheng Yu had been absent inspecting stores and supplies when Liu Bei left. As soon as they heard of his expedition, they went in to see their master, asking him why he had let Liu Bei go in command of an army.
“He is going to cut off Yuan Shu,” replied Cao Cao.
“Formerly, when he was Imperial Protector of Yuzhou, we recommended that he should be put to death, but you would not hear of it. Now you have given him an army. You have allowed the dragon to reach the sea, the tiger to return to the mountains. What control will you have in future?”
So spoke Cheng Yu; and Guo Jia followed in the same strain, saying, “Even if you would not put him to death, you need not have let him go. As the proverb says, 'Relax opposition for one day and age-long harm ensues.' You must admit the truth of this.”
Cao Cao recognized that these were prudent counsels, so he sent Xu Chu with five hundred horsemen and imperative orders to bring Liu Bei back again.
Liu Bei was marching as rapidly as possible when he noticed a cloud of dust in the rear and remarked to his brothers, “Surely they are pursuing us.”
He halted and made a stockade, and ordered his brothers to be in readiness, one on each flank. Presently the messenger arrived and found himself in the midst of an army ready for battle. Xu Chu dismounted and entered the camp to speak with Liu Bei. “Sir, on what business have you come?” asked Liu Bei.