Slim MacKenzie (known by some as Carl Stanfeuss) has a gift that can also be viewed as a curse. His strangely colored “Twilight Eyes” are a sign of psychic ability. They allow him to see through the human disguises of hideous creates that he calls Goblins. He is in a self-imposed mission to kill them all. There are times when he wishes that he had a different gift – such as the gift of healing that his mother has.
Slim, who is only 17, has run away from home after killing an uncle (who was really a Goblin). His adventure leads him to join the Sombra Brothers carnival, which travels from place to place. Oddly enough, Slim notices that many Goblins are among the patrons.