Stenvel is a disease currently affecting the western coastal regions of Ackenzal, especially Wyvar. Those with the disease initially suffer from diarrhea and stony, grayish skin on their hands, neck, and feet that flakes away in the sun. Eventually the afflicted start exhibiting high sensitivity to light, muscle weakness, and finally aggression and dementia.
The disease seems to affect men twice as often as women, and has not been found to afflict infants. Many believe that the disease was brought by the giant refugees coming from The Char, and have demanded that the outsiders be dealt with. Others contend that the disease comes from insects brought over on trading ships going to and from Pachiomadio, or that the disease comes from the vast planting of the milho that was imported from Cairnaytheil and planted in preparation for famine.