Ava is on the run for a crime punishable by death: killing a dragon.

As a human-dragon hybrid, Ava has never doubted the godlike dragons' dominance. Her life has been sheltered beneath their stained-glass wings in the city in the sky—until she murders one.

Hunted, she flees to the human desert below the floating city. Yet she's not alone. Though he doesn't know the crime she's running from, Vito, the dragon Ava serves, refuses to abandon her to the harsh world of humans. Paired to be her master and she his caretaker, their friendship has always meant more than titles.

The desert holds no sanctuary for them. The long-suffering ground dwellers are tired of having their water supply monopolized by the dragons above and want all dragon-kind dead—including Ava and Vito. Surrendering to the dragons isn't an option with Vito by her side, and the rebellion has offered a tempting deal. They will keep Ava alive and hide her crime, but only if she reveals the weaknesses of dragon-kind and the secrets of her city. Ava must choose between her life and everything she once called home—including Vito, the closest thing to family she has left.