Pitch-black bolts of lightning suddenly streaked through the void, instantly shattering vast stretches of it before hurtling toward Xiao Yan.
"I've only just entered the Extraterrestrial Evil Race's territory, and I've already run into a Demon Emperor?"
With a thought, Xiao Yan drew the Hell Furnace into his body and let those pitch-black lightning bolts, each capable of easily striking a Great Perfection Earthly Sovereign dead, crash into him.
The lightning looked immensely powerful, but it had actually only reached the threshold of Immortal Grade. Whoever had attacked him was presumably a Xuan Mo Emperor.
With the Hell Furnace guarding his interior, Xiao Yan's body merely trembled beneath the black lightning without suffering the slightest injury. Instead, once the lightning entered his body, the Hell Furnace converted it into his own lightning power to temper his flesh.
"It's the Thunder Demon Clan!"
Xiao Yan's mind stirred, and the basic information about the Thunder Demon Clan instantly surfaced in his thoughts.
The Thunder Demon Clan was one of the Extraterrestrial Evil Race's Thirty-Two Great Clans, ranking just below the foremost clans such as the Sacred Demon Race and far surpassing the Bone Demon Tribe. Although they had only one Heavenly Demon Emperor, their numbers of Xuan Mo Emperors and Nether Demon Emperors far exceeded those of the Bone Demon Tribe.
Moreover, the Thunder Demon Clan's Ancestor was known as the Thunder Prison Heavenly Demon Emperor. His mastery of the Thunder Prison Technique had reached a transcendent level. In ancient times, he had joined forces with another Heavenly Demon Emperor to surround and kill a Saint Grade Heavenly Supreme of the Great Thousand World. Even against the True Flame Emperor, he had merely been at a disadvantage.
"The Thunder Demon Clan really is incredibly powerful. If they had poured out in full