New friends. A ruthless murderer. Life in the city is not what they expected.
Staying with Maud in the bustling city of Dublin, the Wrens' lives are broadened like never before. While Maeve's friendship with the young warlock Henry Swift occupies much of her time, Kate finds herself falling for an alchemist.
But life takes a dark turn when one of the city's witches is murdered. When yet another witch dies the same way, the community realise something terrible is afoot. With the secretive and always watchful magical council keeping a close eye, the Wrens must keep Maeve's power a secret at all costs while fighting the danger that is creeping ever closer.