Demigods, or half-bloods, are a race of beings that are half-mortal and half-god. They possess mortal souls and are vulnerable to old age and death though they have longer than average human lifespans; however, their divine blood endows them with supernatural abilities that allow them to achieve feats usually not possible by humans. Camp Half-Blood is a Greek demigod training facility located on the north shore of Long Island. The camp is directed by the god Dionysus