The Thousand Bamboo Void Island

"I heard there is a kind of metal born within Chaos. If you add this kind of material to your saber weapon, I'm afraid not even a connate Dharma treasure may be stronger than this saber of yours. However, this kind of material is only a rumor. In fact, nobody has obtained it before. I'm talking about another kind of material called the Melted Planet Metal," Tang Xitan explained.

Metals born within Chaos were Heaven-Opening Metals. Di Jiu was aware of these things, and they were indeed only a rumor. However, he did not intend to search for this kind of thing. This was the first time he had heard of the Melted Planet Metal, so his Spiritual Force immediately landed on the Book of the World.

The Book of the World had the answers to everything.