Lucent Sylph

Lucas Thissel has something he fears: an alien species of palm-sized glass fairies. They are Lucent Sylphs. They started arriving recently, in the middle of the United Statues, from a parallel, non-physical dimension, and they indenture themselves, as slaves to human beings, in exchange for gold. A Lucent Sylph does not eat or sleep, but is fueled on human emotion. Her insides are made up of a s