The big black rat that just fled was indeed too swift, startling even the Master of Purgatory himself.
Chong Zhen let out a cold snort, waving his hand casually, a streak of black light surged towards the direction where the shadow had vanished.
Before long, there came a scream not far ahead, and a Purgatory Blood Guard stumbled toward them, moving with such stiffness as if a walking corpse.
Seeing the Purgatory Blood Guard, the Master of Purgatory's face flashed with a trace of furious shock, staring at him he demanded, "Scoundrel, what has frightened you so?"
This was not just panic; it was outright fleeing for life, the type that involved wild, desperate running, failing even to notice his own Master.
The Purgatory Blood Guard seemed to be controlled by something, still struggling along the way, but upon seeing the Master of Purgatory, turned pale and forgot even to struggle, hastily saying with respect, "Master!"