"Stop! Who dares trespass into the imperial palace?"
Zheng Ping'an, carrying Li Xiu'er in his arms, had just approached a palace gate with his family when Cheng Yaojin and two Black Armor Army soldiers immediately barred their way!
Ever since they had followed Li Shimin into the imperial palace through Black Tortoise Gate, Cheng Yaojin, Yuchi Gong, and Qin Qiong had at once led men to take control of the entire palace!
The whole operation had taken no more than ten-odd minutes!
As for the God of War Li Jing and Hou Junji, under Qing Mo's arrangements, they had long since led troops to receive the Anxi Army!
Though the imperial palace guards of the Tianbao Era were not weak, before Li Shimin's most elite Black Armor Army, they were still not worth mentioning!
Looking at the armored general before him, sharp-eyed, broad-backed, and powerfully built, Zheng Ping'an gently set Li Xiu'er down from his arms before slowly stepping forward!
"May I ask, are you General Cheng Yaojin, Duke of Lu from the Zhenguan Era?!"
With humble bearing, Zheng Ping'an stood several meters away from Cheng Yaojin and respectfully cupped his hands in salute!
Seeing that this boy had recognized him at a glance and had even accurately stated that he came from the Zhenguan Era!
Cheng Yaojin gently pushed aside one of the Black Armor Army soldiers beside him, then strode up to Zheng Ping'an, his gaze full of scrutiny!
"You're Zheng Ping'an, right? The National Preceptor mentioned you to this old man before!"
"But you called me by the wrong title just now. It's true that this old man is a duke, but I am the Duke of Su, not the Duke of Lu!"
"And how did you know this old man was Cheng Yaojin, rather than that