Fifteen-year-old Clio should have never been the Oracle of Sheehan. That power is passed from mother to eldest daughter, and Clio is the youngest of four sisters. But when her entire family is murdered by Mannix, the king's adviser, Clio is left all alone and heir to a power she never wanted and doesn't understand.

Hunted by Mannix, Clio seeks refuge in a foreign city where oracles are absolutely forbidden. If she's found out, she will be sacrificed atop its great pyramid.

Clio has no choice but to win the trust of Riece, an enemy warrior. Despite the growing feelings between them, Clio knows that if he finds out who she really is, he won't hesitate to kill her.

Clio tries to hide her budding powers, longing to be a normal girl who can fall in love, but the visions she has of Mannix bringing a barbarian army into Sheehan torture her conscience. She alone has the strength and foresight to stop him, but only if she can embrace her destiny and sacrifice everything.