It was always Kieto's destiny to lead the Polynesian armies against the Celts and the Picts of the Land-of-Mists. And now the time has come. The warriors are assembled, the boats are ready, and the gods are preparing for the confrontation. Only Seumas, the Celtic warrior taken from his homeland years before, speaks out against the great adventure. But Seumas is an old man now, embittered by the loss of his beloved wife, Dorcha. Not even the love of his son, Craig, can console him. Soon the mighty army is on the move, crossing the sea towards the unknown land, and Seumas and Craig swell its numbers. They encounter storms, magic, monsters and tragedy even before they reach their destination - the cold, rainy land of muted colours that will decide their fate - and that of their gods.