Cassie Inamic has spent nearly her entire life in darkness, literally. The kingdom she lives in has absolutely no light, not a sun, moon or stars. What she doesn't know about this kingdom is that her parents are the reason her best friend is enslaved, the place is dark, and the rebel groups are out to kill her. When Cassie gets asked to go and burn the rebel's headquarters, she makes a decision that destroys friendships, kills many, and ultimately leads her closer towards the truth about her life, but it plunges her home into a civil war with everybody she loves at stake.