After leaving Society to desperately seek The Rising, and each other, Cassia and Ky have found what they were looking for, but at the cost of losing each other yet again. Cassia is assigned undercover in Central city, Ky outside the borders, an airship pilot with Indie. Xander is a medic, with a secret. All too soon, everything shifts again.

The Society chooses everything. The books you read. The music you listen to. The person you love. Yet for Cassia the rules have changed. Ky has been taken and she will sacrifice everything to find him. And when Cassia discovers Ky has escaped to the wild frontiers beyond the Society there is hope. But on the edge of society nothing is as it seems... A rebellion is rising. And a tangled web of lies and double-crosses could destroy everything.

INK taught Leora that all was not what it seems on the surface. SPARK taught her that there are two sides to every story. Now Leora has had enough of lessons - she wants to make her own story. The explosive finale to the best-selling INK trilogy sees Leora struggling to reconcile her past and her future - and recognizing that there may be no easy answers.