Selene and Helios reside in their planes; Luna and Sol. These two planes are essential to life on Xavia. But for an unknown reason, the combination of these two release a strange magical by product. During a solar eclipse, beings caught in its lack of light have a small chance of becoming afflicted with vampirism. Vampirism is an incurable magical disease. Those afflicted are unable to stay in direct sunlight without being burnt to cinders. Vampires do not need to eat, sleep or breath, but require blood for nourishment. A vampire can create another by draining the blood from a being. Despite some weaknesses, vampires become generally stronger from their original state.