In his bones
A small pool of sweat formed on the ground around Lex, though it did not last long as it began boiling shortly after. The scorching heat of the stone floor did not bother Lex nearly as much as the shock of what he was suffering.
He knew there was a difference, there had to be one. But for him, who cultivated the most mysterious and powerful technique in the universe, to not be able to even stand in the presence of a dead dragon was astounding.
Well, to be fair, Lex was merely in the Golden core realm, while the dragon was definitely stronger than the Earth Immortal realm. That meant that it was at least a Heaven Immortal, if not a Celestial Immortal. That was a difference of at least 3 or 4 major realms.