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After a standoff lasting more than 100 days, Sima Yi heard from civilians that Zhuge Liang had died from illness and that the Shu army had burnt their camp and retreated. Sima Yi led the Wei forces in pursuit. Zhuge Liang's assistant, Yang Yi, ordered the Shu soldiers to beat their war drums and get into formation to resist the enemy. Sima Yi did not press on since he felt that the Shu army was already beaten; Yang Yi withdrew. According to folklore, Sima Yi retreated after he saw a wooden statue of Zhuge Liang and thought that Zhuge Liang was still alive. In some variations of this legend, it was Jiang Wei who disguised himself as Zhuge Liang to scare away Sima Yi.