A Fourth Palace’s Genius?

The sharp Dark Heavenly Sword flew through the air, hacked the last Heavenly General, and killed him. Jiang Chen's body was drenched with blood, all his own, and also riddled with scars. As for the Heavenly Soldiers and Heavenly Generals, they had all turned into purple mist, which formed a purple cloud atop the palace.

According to what people knew about the Doctrine Palace, it wouldn't provide any promotion to a challenger's power. Challengers could only try to make a breakthrough by themselves while in a predicament such as what Jiang Chen had just done. This was why Jiang Chen didn't care at all about this purple mist. However, it started unexpectedly revolving, and descending toward him. It all completely surged into Jiang Chen's body.

"How is this possible?"