Under the harsh regime of an ambitious master, candidate Eon is training to become a Dragoneye - a powerful Lord able to master wind and water to protect the land. But Eon also harbours a desperate secret. Eon is, in fact, Eona, a young woman who has endured years of disguise as a boy for the chance to practice the Dragoneye's Art. In a world where women are only hidden wives or servants, Eona's dangerous deception is punishable by death.