re even scared off by the prince alone.""The Crown Prince forced him to confess Zhao Xuanji's crimes, he dared not speak, but at this crucial moment, he was killed by Zhao Xuanji with a dagger."The Ki... of saltpeter mines was not extensive before. Now that we urgently need it, there is no time to explore again. I heard that your Jin Kingdom has several saltpeter mines that have already been explore...