The Mysteries - Daughter of Darkness: A Novel of Ancient Eleusis

In 480 BC, fifteen-year-old Melaina's biggest worry, she thinks, is wishing to follow Artemis and remain virgin when her mother and grandfather want her to marry and became a priestess. But when the Persians invade, the gods themselves have plans for Melaina, including carrying a divine child and divining for the Greek fleet in a battle to determine the salvation or ruin of all Greece.