Gray Hibernation: What is the disease?
The gray ailment (eng. Greyscale) is a contagious disease resembling leprosy, because of which the skin hardens, becomes fragile, becomes gray and feels like a stone to the touch. Tongue and lips lose mobility. The disease usually begins with the limbs, then rises higher when it reaches the head, turns inward and the victim falls into insanity. Most victims of the disease are children in a cold and humid climate. People who have survived the disease most often remain disfigured, but they become immune to other rare and deadly diseases (gray plague, etc.).
In the Free Cities, the sickness of the gray people of the stone people is driven into the ruins of Kroyan, where, according to legends, they are ruled by an ominous Lord-in-Sawane. Triarchs of Volantis send ships with provisions for the infected three times a year, however often the team itself replenishes the ranks of the sick. Wilds call the disease gray death1, and they are sure that even the surviving child is dead, as Vel says to the children who survived the gray disease, the disease always returns. The disease is painless, a person can live with her 5 - 10 for years, gradually becoming more and more covered with gray scab, the sensitivity of the affected areas is lost.
According to the available information, Greyscale or Gray Ailment, or Stone Disease, is a serious infectious intractable disease that manifests as hardening of the skin. The skin becomes hard and brittle and becomes gray. The oral cavity becomes inactive. When the disease reaches the head, the person most often is waiting for insanity.