Scotland, AD 580: A queen has risen. A battle has been won. Loved ones who were lost have been reunited. But in a land of power-hungry kings, peace is precarious and cannot last for long. All too soon, circumstance pulls both Britons and Scots back to their own destinies.

The warrior Artúr receives a mysterious summons from his father in Dalriada. Queen Languoreth and her brother must return to Strathclyde with the dangerous former bishop Mungo in tow, determined to maintain the fragile balance between the Christians and the people of the Old Way. Meanwhile, the young priestess Angharad must travel deep into the shadowed land of the Picts, hoping to become the initiate of Briochan, a druid who practices the secret Celtic art of weather work.

As they rise to meet their fates, they are pushed to impossible new frontiers: each must decide whether they are willing to do what it takes to become the heroes their harrowing days demand.

Set in the sprawling historical landscape of early medieval Scotland, Pike's critically acclaimed retelling of the Arthurian saga thrusts readers into a world of ambition, loyalty and love, revealing truths that have for too long been buried by legend in this "gorgeous, sweeping saga" (Janet Skeslien Charles, New York Times bestselling author).