The Yin fire immortal calamity arrived very quickly.
This Yin fire originated from the Yongquan acupoint, descending from the mysterious unknown void within the immortal's body that was connected to the dao of immortality, burning the physical body—including the internal organs—and penetrating straight to the Niwan Palace.
The Yin fire burned not only the physical body, but the soul as well.
Chapter 39