C1671

Hearing the sarcasm in Xiao Xiang's words, Tang Yin did not get angry, but nodded his head and said with a smile: "That's right, how can a six step thick wall be smashed by a few stone bullets!"

"Since Your Highness knows, why did you still …"

"The Outer Wall is six steps thick, it is abnormally hard, but the Inner Wall is temporarily constructed, it is far from being as thick as the Outer