Su Jingchen saw that Ting Mao had increased the manpower for the siege, so he immediately called the archers to the city wall. The arrowheads were wrapped in rags soaked in kerosene, which were ignited on the torches before being shot out.
Because most of the barbarians below the city were covered in boiling sewage, the fiery arrows quickly ignited them.
The barbarians caught on fire were in a frantic panic, rolling on the ground to extinguish the flames. In the midst of their rolling, a rain-like barrage of stones descended on them, and screams echoed beneath the city walls. The freshly paved cement road at the entrance to Yangcheng quickly turned red with blood.
Ting Mao saw this and was furious, driving his warhorse to the city gate.
"You filthy Su's son, you're used to these dirty tricks; step out and duel if you have the guts!"
Su Jingchen smiled slightly, "Why should I duel with you?"
Outside the city were all his men; it would be foolish to go out and duel him.
