Servants of Hastur the unspeakable, they are a race of hybrid creatures made of ordinary matter that live in interstellar space. A hybrid who is neither completely crows, nor moles, nor buzzards, nor ants, nor vampire bats, nor decomposed human beings, they can neither be fully perceived nor remembered by a sane person. They can travel through space and carry a rider, but the rider must have something capable of protecting them from the cold and vacuum of space. They can be summoned to Earth to carry out tasks or act as steeds.