C403 But Remember the Old Times

However, when Gong Gu'an and Lyi Ziqing arrived at the palace, the former looked at their clothes and their bulging bags and suddenly fell into silence.

"Follow me, we'll go in quietly. . . "

Lyi Ziqing waved his hand and aimed at the weakest and most unguarded place in the palace wall. But before he could leave, Gong Gu'an pulled him back and asked:

"What is inside the package?"

"Gunpowder