Temptation and Breakthrough

Celestial Thearch Myriad Star didn't dare show any disrespect to Black Fiend Progenitor.

Black Fiend Progenitor was a famous Eighth Tribulation Eminence in the River of Spacetime. He had refined two legacy treasures—Black Fiend Hall and Nightmare Hall. To a Seventh Tribulation Eminence, these two treasures were comparable to Eternal treasures. Just by looking at the treasures he refined, one could tell how unfathomable Black Fiend Progenitor was.

The Black Fiend Hall faction had wreaked havoc in the River of Spacetime for many years; the other Eighth Tribulation Eminences could only endure it.