Hessai, the Unliving Evil that hunts the living and plagues the world of the Elehura and Sheshai the Purifier stories. According to legend, it was once just a singular being but learned to become many and take on different forms. Its instances always have common traits, though: dark gray skin, eight “limbs” (though these could manifest to appear as horns or ears), and a singular red eye.
Threpel Hessai are the most common of the Hessai variants, and the closest resemblance and size to the anthropomorphic races.