t shouting； and up came an army at full speed。 Cao Zhen thought all was lost； and his heart sank； but it was Sima Yi； who drove off the pursuers。
Though Cao Zhen was saved； he was almost too ashamed to show his face。
Then said Sima Yi； 〃Zhuge Liang has seized Qishan； and we cannot remain here。 Let us go to River Wei； whence we may try to recover our lost ground。〃
〃How did you know I was in danger of defeat？〃 asked Cao Zhen。
〃My messenger told me that you said there was not a single soldier of Shu near； and I knew Zhuge Liang would try to seize your camp。 So I came to your help。 The enemy's plan succeeded； but we will say no more about that wager。 We must both do our best for the country。〃
But the fright and excitement made Cao Zhen ill； and he took to his bed。 And while the army were in such a state of disorder； Sima Yi was afraid to advise a return。 They camped at River Wei。
After this adventure Zhuge Liang hastened back to Qishan。 After the soldiers had been feasted and services recognized； the four discontented leaders………Wei Yan； Chen Shi； Du Qiong； and Zhang Ni………came to the tent to apologize。
〃Who caused the loss？〃 said Zhuge Liang。
Wei Yan said； 〃Chen Shi disobeyed orders and rushed into the valley。〃
〃Wei Yan told me to；〃 said Chen Shi。
〃Would you still try to drag him down after he rescued you？〃 said Zhuge Liang。 〃However； when orders have been disobeyed； it is useless to try and gloze it over。〃
Zhuge Liang sentenced Chen Shi to death； and he was led away。 Soon they brought his head into the presence of the assembled generals。 Zhuge Liang spared Wei Yan as there was yet work for him to acplish。
After this； Zhuge Liang prepared to advance。 The scouts reported that Cao Zhen was ill； but was being treated by doctors in his tent。
The news pleased Zhuge Liang； and he said to his officers； 〃If Cao Zhen's illness is slight； they will surely return to Changan。 They must be delayed by his serious sickness。 He stays on so that his soldiers may not lose heart。 Now I will write him such a letter that he will die。〃
Then he called up the soldiers of Wei who had yielded； and said to them； 〃You are Wei troops； and your families are all over there： It is wrong for you to serve me。 Suppose I let you go home？〃
They thanked him； falling prostrate and weeping。
Then Zhuge Liang continued； 〃Friend Cao Zhen and I have a pact； and I have a letter for him which you shall take。 The bearer will be well rewarded。〃
They received the letter and ran home to their own tents； where they gave their mander…in…Chief the letter。 Cao Zhen was too ill to rise； but he opened the cover and read：
〃The Prime Minister of Han； Zhuge Liang； to the Minister of War； Cao Zhen：
〃You will permit me to say that a leader of an army should be able to go and e； to be facile and obdurate； to advance and retire； to show himself weak or strong； to be immovable as mountains； to be inscrutable as the operations of nature； to be infinite as the universe； to be everlasting as the blue void； to be vast as the ocean； to be dazzling as the lights of heaven； to foresee droughts and floods； to know the nature of the ground； to understand the possibilities of battle arrays； to conjecture the excellencies and defects of the enemy。
〃Alas！ One of your sort； ignorant and inferior； rising impudently in heaven's vault； has had the presumption to assist a rebel to assume the imperial style and state at Luoyang； to send some miserable soldiers into Xie Valley。 There they happened upon drenching rain。 The difficult roads wearied both soldiers and horses； driving them frantic。 Weapons and armors littered the countryside； swords and spears covered the ground。 You； the mander…in…Chief； were heart…broken and cowed； your generals fled like rats。 You dare not show your faces at home； nor can you enter the halls of state。 The historians' pens will record your defeats； the people will recount your infamies： 'Sima Yi is frightened when he hears of battle fronts； Cao Zhen is alarmed at mere rumors。' My soldiers are fierce and their steeds strong； my great generals are eager as tigers and majestic as dragons。 I shall sweep the Middle Land bare and make Wei desolate。〃
Cao Zhen's wrath rose as he read。 At the end it filled his breast。 And he died that evening。 Sima Yi sent his coffin to Luoyang on a wagon。
When the Ruler of Wei heard of the death of Cao Zhen； he issued an edict urging Sima Yi to prosecute the war； to raise a great army； and to fight with Zhuge Liang。
Sima Yi sent a declaration of war one day in advance； and Zhuge Liang replied that he would fight on the morrow。
After the envoy had left； Zhuge Liang said； 〃Cao Zhen must have died！〃
He called Jiang Wei by night to receive secret orders。 He also summoned Guan Xing and told him what to do。
Next morning the whole force marched to the bank of River Wei and took up a position in a wide plain with the river on one flank and hills on the other。 The two armies saluted each other's appearance with heavy flights of arrows。 After the drums had rolled thrice the Wei center opened at the great standard and Sima Yi appeared； followed by his officers。 Opposite was Zhuge Liang； in a four…horse chariot； waving his feather fan。
Sima Yi addressed Zhuge Liang； 〃Our master's ascension of the Throne was after the manner of King Yao； who abdicated in favor of King Shun。 Two emperors have succeeded and have their seat in the Middle Land。 Because of his liberality and graciousness； my lord has suffered the rule of Shu and Wu lest the people should suffer in a struggle。 You； who are but a plowman from Nanyang； ignorant of the ways of Heaven； wish to invade us； and you should be destroyed。 But if you will examine your heart and repent of your fault and retire； then each may maintain his own borders； and a settled state of three kingdoms will be attained。 Thus the people may be spared distress； and you will save your life。〃
Zhuge Liang smiled and replied； 〃Our First Ruler entrusted to me the custody of his orphan son： Think you that I shall fail to exert myself to the uttermost to destroy rebels against his authority？ Your soldiers of the Cao family will soon be exterminated by Han。 Your ancestors were servants of Han and for generations ate of their bounty。 Yet； instead of giving grateful service； you assist usurpers。 Are you not ashamed？〃
The flush of shame spread over Sima Yi's face； but he replied； 〃We will try the test of battle。 If you can conquer； I pledge myself to be no longer a leader of armies。 But if you are defeated； then you will retire at once to your own village and I will not harm you。〃
〃Do you desire a contest of generals； or of weapons； or of battle array？〃 asked Zhuge Liang。
〃Let us try a contest of battle array；〃 replied Sima Yi。
〃Then draw up your array that I may see；〃 said Zhuge Liang。
Sima Yi withdrew within the line and signaled to his officers with a yellow flag to draw up their troops。
When he had finished； he rode again to the front； saying； 〃Do you recognize my formation？〃
〃The least of my generals can do as well；〃 said Zhuge Liang； smiling。 〃This is called the 'Disorder…in…Order' formation。〃
〃Now you try while I look on；〃 said Sima Yi。
Zhuge Liang entered the lines and waved his fan。 Then he came out and said； 〃Do you recognize that？〃
〃Of course。 This is the 'Eight Arrays'。〃
〃Yes； you seem to know it。 But dare you attack？〃
〃Why not； since I know it？〃 replied Sima Yi。
〃Then you need only try。〃
Sima Yi entered the ranks and called to him three generals………Dai Ling； Zhang Hu； and Yue Chen………to whom he said； 〃That formation consists of eight gates………Birth； Exit； Expanse； Wound； Fear； Annihilation； Obstacle； and Death。 You will go in from the east at the Gate of Birth； turn to the southwest and make your way out by the Gate of Annihilation。 Then enter at the north； at the Exit Gate； and the formation will be broken up。 But be cautious。〃
They started with Zhang Hu leading； Dai Ling next； and Yue Chen in rear； each with thirty horsemen。 They made their way in at the Gate of Birth amid the applause of both sides。 But when they had got within they found themselves facing a wall of troops and could not find a way out。 They hastily led their men round by the base of the line toward the southwest to rush out there。 But