Diana longs to prove herself to her legendary warrior sisters. But when the opportunity comes, she throws away her chance at glory and breaks Amazon law to save a mere mortal, Alia Keralis. With this single heroic act, Diana may have just doomed the world.

Alia is a Warbringer. As a descendant of the infamous Helen of Troy, she is fated to bring about an age of bloodshed and misery. Now Diana and Alia will face an army of enemies—mortal and divine—determined to either destroy or possess the Warbringer. If they have any hope of saving both their worlds, they will have to stand side by side against the tide of war.