Under these circumstances, if they kept bombarding the city for another two or three days, Cang Ba and Yue Jin would have nowhere left to defend.
###
Watching the stones rain down from the sky, Cang Ba asked Yue Jin in dismay, "Where did these siege engines come from? Why is their range so great, and why are the stones they hurl so huge?"
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Yue Jin replied helplessly, "These things first appeared in Jiangxia, then later in Yangzhou. I'm sure they're the handiwork of Guan Yu's son-in-law.
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"Ever since they came along, we've never had the upper hand in a war against Liu Bei. They're terrible for morale."
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Hearing this, Cang Ba could only ask helplessly, "What should we do now? We can't hold this place. They can just hurl stones at us every day until they kill us all.
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"Once the walls are destroyed, there won't be any cover left. They'll be able to bombard us at will, and we'll have nowhere to hide."
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Yue Jin understood what Cang Ba meant and said helplessly, "Guan Yu's son-in-law has gone to Qingzhou. Should we break through and head for Yanzhou? We could wait there for General Cao Zhen and help him. I suspect Xuchang won't be able to hold out once these siege engines arrive."
###
That was exactly what Cang Ba had been waiting to hear. Without hesitation, he decisively chose to retreat. He knew all too well that with these siege engines, even hiding in the mountains would be useless.
###
Of course, if Cang Ba had been hiding in the mountains with only a few personal guards, he might have had a chance. But that wouldn't have accomplished anything.
###
As Cang Ba and Yue Jin withdrew, they discovered Guan Yu personally