C76 Know Who the Murderer Is

Could it be that because there was no? Mechanical Arts?, no one could enter the Wanfo Pavilion? Only the cannons could destroy the mechanisms of the Wanfo Pavilion?

Could it be that the true purpose behind bombarding Prince Yu's Mansion was Wanfo Pavilion?

Imperial Concubine Min used everything he had learned in his lifetime to construct the Wanfo Pavilion