So-called phosphoric sickness occurs when close contact is made with living creatures who possess a strong source of undead energy. Bone Dragons [14] and Demi-leeches usually play this infectious role. At the first sign of phosphoric sickness symptoms, a scroll of dispersal must be urgently applied, in order to nip the sickness in the bud. If this is not done, the sickness will grow progressively worse and begin to infect others.