Co Loa Crossbow
The magic crossbow of Co Loa is the weapon of An Duong Vuong, the legendary king of the Au Lac kingdom, whose trigger was forged from the golden claw of Kim Qui, the golden turtle god, and which could kill thousands of men with a single shot. The king built the spiral citadel of Co Loa with the turtle's help, but his defence was undone by his own daughter: My Chau, newly married to the spy Trong Thuy of the northern enemy, showed him the secret of the trigger, and the enemy stole it, the citadel fell, and An Duong Vuong fled with his daughter. Learning of the betrayal, the king beheaded My Cha