"Young Master, these blood demons aren't ordinary Immortal Soul Bodies. Even if you exhaust all your Immortal Soul Power, you might not be able to kill them!"
Prisoner of Heaven Lord could not help warning him when he saw this.
"Then what do I do?"
Lu Ren asked, his expression grave.
"Only a special Immortal Soul attack can kill them!"
Prisoner of Heaven Lord sounded anxious.
He could feel the Blood Fiend pressure around them growing stronger. It had already exceeded what an ordinary Immortal Body of immortal durability could withstand.
The longer this dragged on, the worse it would be for Lu Ren.
"An Immortal Soul attack?"
Lu Ren raised an eyebrow and immediately said, "Hun Mengtian, Hun Jiao'er, activate the Nine Nether Soul Devouring Zither and the Soul Suppressing Demon Flute!"
"All right!"
The two women nodded.
The Nine Nether Soul Devouring Zither and the Soul Suppressing Demon Flute flew out of Lu Ren's body. Though no one played them, the zither and flute began sounding on their own.
Waves of music swept out. The flute's notes wound around the blood demons, pinning them in place.
The Nine Nether Soul Devouring Zither floated above Lu Ren's head. As though invisible hands were plucking its strings, notes poured forth to devour souls and seize spirits, striking the demons.
The blood demons struck by the notes instantly collapsed into pure energy that surged into Lu Ren's Immortal Soul Body.
"Keep killing them!"
Lu Ren shouted.
Hun Mengtian and Hun Jiao'er drove the Nine Nether Soul Devouring Zither and Soul Suppressing Demon Flute without pause. Zither and flute intertwined, killing the blood demons one by one.
"The fourth trial? Lu Ren has already reached the fourth trial? How is that possible?"
Yan Taichu stared at the blood-colored halos around Lu