Just as Yang Mingzhi handed the letter to Liang Chu, the soldiers at Guanshan Pass were also bustling with activity.
Yang Zhenshan issued more than a dozen commands in succession, mobilizing all his troops under his command. Not only the soldiers but also the engineers and the tens of thousands of civilian laborers received orders.
The soldiers and civilian laborers carried the already prepared straw cages and fire oil up the hillside.
Large and small straw cages nearly covered the back side of the hillside at both sides of Guanshan Pass.
Such a large movement naturally could not be concealed from the Wuliang army in the valley.
Wu Tuo, watching the busily working soldiers on the hillside, frowned and asked, "What are they doing?"
"Not sure, it seems like they're constructing fortifications!" a Wuliang general said.
