Gu Qingshan walked up to the second Demon King.
He crouched down and looked at him. "Tell me how you got back."
The Demon King grinned viciously. "I can take you back with me."
"No need." Gu Qingshan glanced at the long line of demons behind him. "I haven't decided which one I want to visit yet."
The Demon King saw him raise the longsword in his hand and hurriedly said, "In the darkness, take light as your source and sound as your guide. You need a total of thirty-nine syllables of incantation."
It recited a long incantation.
Gu Qingshan listened intently and memorized it.
When the Demon King finished reciting, its form gradually disappeared before him.
It had returned.
Gu Qingshan walked toward the next Ghost King.
The Ghost King's eyes darted about. "Repeat this incantation after me."
Gu Qingshan drew his longsword and swung it viciously at the Ghost King.
Blood sprayed everywhere.
The Ghost King was cut in two.
It stared at Gu Qingshan in resentment, using the last of its strength to ask, "Why...?"
Gu Qingshan said coolly, "Ghost King from Fallen Hell, when your eyes dart around, you're always thinking about how to trick someone. Did you really think I wouldn't know?"
The Ghost King couldn't utter another word. Its life slowly faded away.
All the other Ghost Kings and Demon Kings fell silent.
After a long while, one Ghost King muttered to itself, "This is impossible. How could he know so much about Fallen Ghosts?"
Gu Qingshan walked toward the next Demon King.
He looked at the Demon King without saying a word.
The Demon King hurriedly said, "Fuse wind and thunder in your chest, then recite an eighteen-syllable incantation."
It recited an incantation, and its form gradually disappeared before Gu Qingshan.
Gu Qingshan