C819 Teaching Gunpowder

"Brother Yuan Ge, is this the gunpowder?" After a long time, Qing Mu finally came back to his senses.

Qing Shi walked up quickly and looked around the small pit. He even picked up the few pieces of debris and looked at them carefully, as if he was confirming if the clay pot was really broken. Xiao Mu stayed where he was, his eyes on Yuan Ge's body, unwilling to leave for a long time