After advice from the stranger, Tianming faces Wei Zhuang with the Anti-War device he retrieved from the forbidden grounds of the Mohists. Tianming manages to evade the Wei Zhuang's challenge of Horizontal Pierces Four Directions move using his sword Shark Tooth, but Wei Zhuang still intends to kill him. The stranger then challenges and defeats Wei Zhuang with his sword Momei and reveals his identity as Prince Yan Dan (Yue-Er's father) and leader of the Mohist school. Yan Dan gives Wei Zhuang and the Quicksand group a chance to leave, stating his reason is that he doesn't want Ying Zheng, Emperor of the Qin Dynasty, to succeed. (thetvdb.com)