What do you do when the brutal system that once kept you safe hunts you down? What price would you pay for freedom? In the acclaimed dystopian world of the Key by New York Times bestselling author Kristin Cast, two young rebels fight to determine their own worth and change the world along with themselves.

The Key to Fear

For fifty years, the Key Corporation has defended humanity against a deadly virus that spreads through touch. Lovers don't kiss, or even hold hands. Personal boundaries are valued above all. Break the laws, and you'll face execution. Elodie, a talented young nurse, believes in the mission of the Key and has never questioned the laws that control her life. But Elodie is forced to break the rules when she sets out in search of a terminal patient who goes missing while under her care. From the outside, it seems like Aiden was given everything he could want from the Key—a purpose, an education, and a future. But Aiden knows more than he's letting on, and the dark secrets he's keeping could tear the Key's strict society apart.

The Key to Fury

After discovering the shocking truth behind the Key Corporation, nurse Elodie and misfit Aiden have managed to escape in search of New Dawn—the stronghold for the Eos resistance movement. There, they can fight for a better world, one where everyone can make their own futures. But things aren't always as they seem, and as they navigate the tricky paths between perception and reality, freedom and fighting for survival, the two young rebels must discover who they can trust, even as they learn more about who they really are ...