Deculi

These batlike monstrosities inhabit the nooks and crevices of the Darklands, where they hang from stalactites and swoop down on unsuspecting prey. Though they are completely sightless, deculis possess rudimentary nerves in their skulls that allow them to detect the presence of infrared light-information they use to locate potential food and threats. They are deadly hunters, thanks largely to their magical ability to manipulate the ebb and flow of shadows. Deculis prefer to feed upon the warm blood of freshly killed prey, but they can subsist on carrion if they have to.