To the northwest of the Devil Race, an Aerial Prison had been built.
This was a forbidden ground within the Devil Domain.
To the Devil Race, no one but the ancestors could enter.
It was said that not even their clan chief knew who was imprisoned in the Aerial Prison, and no one was even allowed to approach it.
Within the Devil Race, this place could not even be mentioned.
At this moment, sinister laughter continuously echoed from within the Aerial Prison, each peal louder than the last.
Meanwhile, within the demonic mountain where the Devil Domain's ancestor resided.
Of the two demonic mountains, the one on the left, where the Heavenly Peng Demon Venerable had lived, was already empty.
Only the demonic mountain on the right had remained quiet all along.
At this moment, Si Zu knelt before the demonic mountain and softly said, "Ancestor, he has revealed his identity."
Though his voice was soft, Si Zu knew that the one inside would definitely hear him.
"Has anything unusual happened in the Devil Domain?"
"Not for now," Si Zu replied.
"Where is the Demon Heavenly Emperor?"
"The clan chief has not shown himself, and he does not seem to intend to. Heavenly Virtue Demon did make a trip there, but it was of no use."
"Tell the Demon Heavenly Emperor to come see me," the hoarse voice within the demonic mountain said.
"Understood," Si Zu nodded.
After waiting for a while without hearing another sound from the mountain, he knew it was time for him to withdraw.
Yet Si Zu hesitated for a moment before asking uncertainly, "Ancestor, is that our lord?"
"Too much talk!" A cold snort came from the previously tranquil demonic mountain.
Like a clap of thunder, the entire mountain began to boil as an endless