Rune Hollow Mother Iron is indeed an incomparably precious Divine Material.
Not to mention the people of the Heavenly Profound Sect, even Dao Saints and Sky-obscuring Powerhouses would absolutely not easily let it slip by.
However, because this kind of thing is truly too hard to find.
Although it's unknown how the Heavenly Profound Sect managed to bring this piece of Rune Hollow Mother Iron here and then store it in the Divine Material Library, the Seven Realms Tome can almost certainly affirm that even the Heavenly Profound Sect itself doesn't know that their treasure vault holds such a Divine Material on par with a Supreme Treasure.
Thus, when the Seven Realms Tome turns cunning, it's quite shameless.
This shows Li Chen another side of the Seven Realms Tome.
This guy, although it is the origin of civilization in the Starry Universe, seems like another character upon venturing outside.
However, Li Chen rather likes this current state of the Seven Realms Tome.
