Set in 6th century Ireland where Christianity and Paganism coexist, Brigit is training as the Druid’s apprentice, but when the Druid becomes ill, she is charged with the impossible task of taking his place. A violent storm ravages the land and the sun disappears, causing the crops to wither and die. As the Druid’s proxy, it is up to Brigit to appease the gods, but the gods will not be placated. Convinced Uisneach's hardships are her fault, she does the only thing she can do. She leaves. Traveling north to the Sun Palace to meet her father for the first time, she learns the secret behind her mother’s mysterious disappearance, but uncovering the past unleashes an uncertain future and the renewed anger and vengeance of her father’s evil sister, Mebd, Queen of Niall’s army and referred to by all as the Goddess of War.
The Sun Palace is an epic tale of jealousy and betrayal; love lost and love won, and a story that teaches that only with absolution, can the redemptive powers of love heal the past.