Ling Han didn't possess the ability to make his divine sense penetrate the black surface. It was a surface that could easily shatter the rocks here, and his divine sense would definitely be obliterated if it came into contact with it.
From this, it could be seen just how much more powerful than him the person on the opposite end was.
However, that person couldn't cross over to his side, or else they wouldn't have tried to entice him to begin with.
"Lowly human, do you know who I am?" The face opened its mouth to speak, but his voice only traveled into Ling Han's mind after a short moment. "Open the passageway for me, and I'll grant you a country to rule."
Ling Han was extremely interested in this person's identity. "Oh, who are you?"