As for Yao Qing, he wasn't actually dead. Zhou Shu still had him imprisoned in the Reincarnation Mirror.
Speaking of the Reincarnation Mirror, it was actually a divine weapon that contained inner worlds. Not only did it contain inner worlds, but it even had nine of them!
Logically speaking, Zhou Shu had already used the Legendary Armament Canon to refine the Reincarnation Mirror, so he should be able to use the nine inner worlds of the Reincarnation Mirror to store heaven and earth treasures.
But this Reincarnation Mirror was different from ordinary divine weapons. Although it had nine inner worlds, the nine worlds of the Reincarnation Mirror were very strange.
Only humans or demonic beasts could enter. It couldn't store inanimate objects at all!
Zhou Shu had tried to put the heaven and earth treasures in before, but he had failed.
This was why he stayed here to deal with these forging materials and even asked Bai Qianqian for help.