A xenogog is a humanoid figure under a meter in height, resembling an artificial suit comprised of a slick and flexible tissue with the consistency of tough rubber; the cranium is roughly spherical, bearing a single concave pit of pulsating, concentric red rings. As this pit is turned toward external stimuli, it can be deduced to perform a broad sensory function, and visual contact with it has been known to induce minor dizziness, tinnitus and dry mouth.