C1643 A Trick of the Killing Heart

An enormous tide of flames engulfed the Heart of Slaughter. Accompanied by the Demon Emperor's painful wails, it resounded through the enormous Dao Palace, sounding especially mournful, causing one's hair to stand on end.

After an unknown amount of time, the Demon Emperor's voice gradually calmed down and Xu Liusu was unable to continue spouting out the flames