Hatred and darkness.
After he was done speaking, a pure black liquid suddenly began leaking from Gu Xia's arms and poured onto the ground.
Wu Kuang and the old man jumped a couple feet backward and started accumulating their Qi which was rapidly circling inside their bodies.
Showing indifference on his handsome white face, Gu Xia's blood red eyes began to turn pitch black, his eyes were empty... Only showing that of darkness.
While the black liquid began spreading onto the ground forming into a puddle, Wu Kuang suddenly heard Shang Yao, the Queen of the golden spirits whisper inside his head.
"Boy, you must retreat... The power radiating off that man is deathly... His emotions are in complete turmoil. Only hatred is swirling inside his body."
Clicking his tongue and scoffing at the woman who brought him back to life, Wu Kuang rolled his eyes.
"In all due respect, how can you read his inner emotions?"
He quietly muttered under his breath, his eyes never leaving Gu Xia.