As Lu Xun suspected, there were actually 8,000 Shu troops waiting in ambush in the nearby valleys. Since the Wu forces did not respond to the taunts, Liu Bei abandoned his plan to lure the enemy into the ambush and ordered the 8,000 soldiers to come out of the valleys. When Lu Xun heard about it, he told the Wu officers: "The reason why I did not follow your suggestions to attack the enemy is because I suspected there was something fishy about it." He then wrote a memorial to Sun Quan to emphasize the strategic importance of Yiling, point out some of Liu Bei's weaknesses, and reassure Sun Quan that he would defeat the enemy.