Jing Ke
Concealing the dagger inside the map scroll, Jing Ke and Qin Wuyang represented the Yan as ambassadors and met with King Zheng. Qin Wuyang reportedly became so nervous that he acted almost paralyzed when entering the palace, and Jing Ke managed the excuse that his partner had never set eyes on the grace of Son of Heaven. Other sources suggest Jing Ke described Qin Wuyang as a rural boy who had never seen the world and was suffering a cultural shock. The panicked Qin Wuyang was then barred from moving up the palace, and Jing Ke was ordered to present the map alone.