The Flame Devil King Cheng Huang was currently not feeling very happy at all.
The other party had found some means with which to conceal the treasure, preventing its aura from leaking outwards. This he could think of.
However, even the person himself had completely vanished without a trace. This virtually bordered on ludicrous.
Entering the depths of the sea, this would indeed impede the sensory abilities of Flame Devils. However, with the current cultivation base of him, Cheng Huang, even separated by tens of thousands of metres, finding a Spirit Vessel Martial Grandmaster would not be a hard thing.
The Flame Devil King's sensory abilities spread out amongst all the objects between the heavens and the earth, resembling a great net as he searched everywhere.
Between the surrounding heavens and the earth, everything, including the various lifeforms within the great sea, were presented before his eyes.