Wei lived since the Ancestral Realm era, a time when humanity was prosperous and vast collections of ancient texts were preserved. He knew a great deal.
To infiltrate the Hun tribe, Jiang Chen would first need to mask the aura of his human soul, then replicate the soul aura of a Hun tribe member and graft it onto himself. Jiang Chen was well-traveled and knowledgeable, but he had never even heard of the two magical herbs Wei described.
"Where can I find the Stealth Grass and the Nether Blue?" Jiang Chen asked.
Chapter 2047