The real intention or a hidden danger is revealed at the crucial moment, often after a period of deception or a facade of goodwill. It signifies the exposure of one's true motives or a critical element when all pretenses are stripped away.
Era:
Ancient
Frequency:
Synonym:
Story:
During the late Warring States period, Crown Prince Dan of Yan sought out Jing Ke and Qin Wuyang to assassinate King Ying Zheng of Qin.
He arranged for Jing Ke to present King Qin with the head of Fan Yuqi and a map of Yan. The King was very pleased.
As Jing Ke unrolled the map, a sharp dagger was revealed at its end. He immediately grabbed the dagger and attempted to stab King Qin. King Qin drew his sword to defend himself, and the guards seized the chance to rush forward and kill Jing Ke.