When technology fulfills every dream, reality is a nightmare. But where can one rebel hide when even her thoughts might not be her own? Below the streets of New State, the Grounders fight to remain free of the technological control of the world above. When dusk falls, Wren risks her life by entering the capital city as a raider to secure resources for the rebellion. Each step further inside puts her life in jeopardy from New State's deadliest weapons - Phantoms. More machine than human, tortured until devoid of emotion and caring, Phantoms have only one objective. Kill. And they do it with exacting precision. When Wren meets Codex, a New State citizen who doesn't quite fit her preconceived expectations, everything changes, including her feelings for him. But what Wren feels for Codex is punishable by death. Unrest between New State and the Grounders escalates, and Phantoms move in to destroy her world. And Wren's forced to choose between her people and her feelings. The wrong choice means reality could slip away-forever.