The letter came from Hu Yan, a member of the Corpse Refining Sect whom he had released.
After the last ordeal, he had successfully returned to the Corpse Refining Sect over a month ago.
As soon as he returned, he tirelessly sought out renowned doctors within and outside the sect, as well as poison refining masters, spending a fortune to examine and treat his injuries and the poison within him.
The Bone-Corroding Poison naturally had a cure, so he wasn't too worried about it.
However, the Void Heaven Poison planted by Song Changming was key to whether he could escape Song Changming's control.
Unfortunately, after days of treatment, the renowned doctors he found were all helpless.
The Void Heaven Poison is not a conventional toxin; it corrupts a Martial Artist's Nether Sea and Spirit Body, making it rather mysterious.
Even the poison refining master who saw it exclaimed in awe, his eyes shining.
