Many powerhouses had heard of the mysterious Nine Great Celestial Books.
According to legend, these Nine Great Celestial Books were mysterious Secret Skills scattered throughout the Three Thousand Great Worlds and the Billions of Little Worlds.
To obtain one was to obtain the world.
Whether in one of the Billions of Little Worlds or the Three Thousand Great Worlds, the appearance of a single Celestial Book would allow that world to stand at the peak of the lower planes.
If two Celestial Books appeared in the same world, an unimaginable disaster would follow.
As for three appearing at once, such a thing was basically unheard of.
Just how powerful were these Celestial Books?
Legend had it that ten thousand years ago, before the Reverse Passage from the Upper Realm to the Lower Realm was closed, noble families and secret factions from the highest planes—the Six Realms, including the Demon Realm—had sent powerhouses to the Lower Realm in search of them, causing a huge stir.
