Betrayal. Magic. Murder. 
A tale of three siblings and three deadly sins.
 
In a magical ancient Britain, bards sing a story of treachery, love and death. This is that story. For fans of Madeline Miller's Circe and Katherine Arden's The Bear and the Nightingale, Lucy Holland's Sistersong retells the folk ballad 'The Twa Sisters.'

King Cador's children inherit a land abandoned by the Romans, torn by warring tribes. Riva can cure others, but can't heal her own scars. Keyne battles to be seen as the king's son, although born a daughter. And Sinne dreams of love, longing for adventure.

All three fear a life of confinement within the walls of the hold, their people's last bastion of strength against the invading Saxons. However, change comes on the day ash falls from the sky - bringing Myrdhin, meddler and magician. The siblings discover the power that lies within them and the land. But fate also brings Tristan, a warrior whose secrets will tear them apart.

Riva, Keyne and Sinne become entangled in a web of treachery and heartbreak, and must fight to forge their own paths. It's a story that will shape the destiny of Britain.