Just as the vortex black hole Xiao Yan had summoned devoured the Nether Demon Emperor, the Spiritual Energy fluctuations around him also strengthened by an almost imperceptible trace.
Though that tiny increase was exceedingly small for a Saint Grade Heavenly Sovereign, everyone present was a renowned peak expert of the Great Thousand World, and all of them instantly caught that obscure fluctuation.
"What was that?"
"You can actually devour members of the Extraterritorial Evil Clan and turn them into your own Spiritual Energy?"
Two cries of shock rang out at once from the mouths of the two Saint Grade mighty figures.
"I understand now. So the seven Heavenly Demon Emperors of the Extraterritorial Evil Clan who died so miserably were killed by you. You were devouring the Heavenly Demon Emperors of the Extraterritorial Evil Clan and transforming them into your own Spiritual Energy, strengthening your Spiritual Energy cultivation. That's why your cultivation has advanced so quickly."
The Lord of Undying, old yet still sharp, reacted extremely quickly. He swiftly connected everything together, and the truth blurted from his mouth.
"No wonder. You took the locations of every Demon Suppression Land in the Great Thousand World from me. So it wasn't to pull up the roots and sweep away the demons, but to devour the remnant souls of those Heavenly Demon Emperors."
Qin Tian also reacted at once, staring at Xiao Yan with a horrified expression.
"Heaven truly favors my Great Thousand World. You are the second supreme treasure the heavens have bestowed upon the Great Thousand World after the Immortal Emperor. Speak. What do you intend to do? Tell me, and this old man can satisfy any request you have."
The Lord of Undying suddenly rose to his feet, his gaze burning as he stared at Xiao Yan. Where was