"Yanmen Pass": Princess Qin Lan of the Northern Wei Dynasty asked herself to guard Yanmen. She planted spikes on the city wall and taught herders' children how to practice marksmanship. When the Turkic cavalry invaded again, she personally led the female soldiers to lure the enemy by pretending to be a merchant. When the enemy entered the canyon, thousands of arrows were fired. The red tassel on her silver armor was more brilliant than the blood.
