Humanity abandoned Earth long ago. Now they hurtle through space aboard New Coventry , where a person's worth is determined by their genetics. Seventeen-year-old Dyvah Bellingtier has always upheld the pristine image expected of a daughter from the Mids, right down to her perfect genes. With the Repros approaching--shipwide tests that determine parental fitness and social value--she's focused on following her predetermined path. But everything changes when she meets Rey. Rey is brilliant, fierce, and unafraid to challenge the world around her. Coming from the Shallows, where survival comes first, Rey makes Dyvah question everything she thought she knew about love, loyalty, and the future she's supposed to want. As their bond deepens, Dyvah realizes how little she understands about the world--and how much she's willing to risk to break free from it.

But when a wealthy heir from the Heights begins courting Dyvah with promises of power and luxury, she's forced to confront the truth: the system wants her body and her bloodline--not her dreams. Torn between privilege and justice, legacy and love, Dyvah is about to risk everything. In a system that only takes, it's time someone took something back. For fans of Veronica Roth's Divergent and Beth Revis's Across the Universe , Promise the Sky is a provocative story about the pursuit of justice that will light a fire in readers of all ages.