War has broken out between the humans of the Seven Realms and the long-lost draykoni race. Llandry's home city is under attack, its defenders scrambling to find a way to fight the draykon enemy. The outcome of the conflict seems certain – until the draykoni vanish. Where could they have gone, and why?

Lady Eva Glostrum is convinced that this means bad news. The Lokant sorcerer Krays is still at large, and his mysterious projects centre on her world – and the draykoni. Could he have something to do with their disappearance? If so, why? And what will it mean for the Seven Realms when the draykoni come back?

As Llandry fights to defend her home, Eva sets out in pursuit of Krays. Determined to learn the truth, she'll go to any lengths to prevent him from damaging the Seven. Her quest will take her right into the heart of Krays's Library – and there she will uncover another long-kept secret.