C68 Mysterious Gray Shadow Pale Hand Bone in Blood

Its nose twitched as if it had smelled something. It was the smell of a living being left behind by Niu Thirteen.

"Roar …"

Smelling the scent of living people, its strange black eyes let out an excited and bloodthirsty glow. Then, it turned into a gray shadow as it chased after Niu Thirteen.

At this moment, Niu Thirteen was running at top speed. His speed was several times faster than before