im.Before the advent of gunpowder firearms, although it somewhat alarmed him, it didn't throw him off his game.Firearms did not appear out of thin air. The Qin Dynasty had already developed them, but...en the city gate.With a groan, the massive city gate creaked open on its hinges, revealing a sliver of light.A cavalry unit charged out of the Yuèyá Pass, Li Chen at the center, with Wu Qíngcāng by hi...