The eyeder is a terrible vermin which appears as a spider whose bulbous backside is composed of a giant eye encased in a thin sheathe of webbing and transparent humour. The appearance is not illusionary, the eye is very real and once belonged in someone's head. In a grim cycle of reproduction, the spawn of the eyeder reproduce through the disease it carries, sent in the blood where it latches onto the backs of the eyes. Shortly after infection, the subject goes blind, and in the middle of the night the eyederling spawn crawl free from the skull out of its mauled eyeless victim.