Having exhausted all her strength, it was Gu Youyou's turn.
This time, Gu Youyou didn't use her sword technique.
When the Sea Demon's chant ended, Zhang Chi heard Gu Youyou whisper, "Darkness Descending!"
She didn't use Zhang Chi's mouth to pronounce it but her Spirit Soul's voice.
Zhang Chi could hear it clearly like text, while Demon King Hong Li heard a baffling series of syllables, not knowing their meaning but feeling a deep-rooted fear within her.
In her eyes, the world instantly turned pitch-black, and she couldn't even see her own fingers. She couldn't even project her divine sense, which made the Red Carp Demon King even more anxious.
It wasn't until a "bang" echoed, and a sharp pain hit her back that her world truly went dark.
"I'll leave the rest to you."
Gu Youyou returned control to Zhang Chi and soon fell asleep.
After using her divine ability, she needed to rest for a while to recover her lost power.