Revenge is a fire that burns bright in the epic finale of the Celtic-inspired romantasy duology that began with A Fate Forged in Fire, an instant Sunday Times bestseller.

Aemyra Daercathian is a queen on the run. Having failed to take Àird Lasair and been betrayed by her husband - whom she had grown to trust and was beginning to fall for during her time in captivity - Aemyra is forced to retreat with a raging desire for revenge. She vows to defeat the Covenanters and fulfil a sacred promise to kill Fiorean.

But no one can know the truth. Although Aemyra has a fierce dragon and a large army of Dùileach fighting by her side, she has lost what's most important - her fire magic. Haunted by her love for her enemy and unsure if she is even Goddess-blessed anymore, Aemyra must make a new kind of alliance, one that could mean winning back her territory.

At a cost to her heart. From the ashes, Aemyra must emerge as a new kind of queen. Will she be the dawn for her people or the fire that burns everything to the ground?