C44 Five Great Patriarchs Imprisoning

Just as the Blood Beast was about to turn around, a faintly discernable voice suddenly came out from the tunnel.

"This technique is amazing indeed. Unfortunately, it's still a bit lacking."

The Blood Beast's body suddenly stopped, and quickly turned its head to scan the passage. However, it did not discover anyone, but the voice was very real, and did not sound like an illusion.

Then