Chapter 62 You Let Go of This Palace

Zhao Rui's ear and whispered something to her.Only to see Zhao Rui's pretty face visibly flushed, and finally she widened her eyes, saying in disbelief, "This, this can also work""Your Highness, you'r... no longer anything new.But all of these gunpowder, without exception, are the least efficient black powder.Poor stability, low explosive efficiency, small blast radius, the only advantage is that it'...