As Corrine falls for Euan, the Unhallowed creep in.
Following the destruction of Falston and the loss of the rathstone, nothing can keep Corrine safe. The Fey have spies everywhere. And they are determined to find Corrine wherever she may hide.
With no options left, the Council of Elaphe takes Corrine and the rest of the Falston girls to Scotland where they can fight the Fey on their own terms. As the Council struggles to come up with a battle plan, the girls become immersed in preparations for their first ball. There, a mysterious young man soothes Corrine's heartache and she begins to let down her guard -- perhaps sooner than she should. For there is a new danger lurking on the Scottish moors, a danger more sinister than any Corrine has faced before.