Mighty swordsman Norgal and his unlikely companion, the severed head of the Blue Witch Agatha, have been summoned to the Scottish Isle of Barra to rid them of the sea monster plaguing its shores. But what the duo did not intend is to find a much more sinister and ancient evil awaits. The two now face a series of trials that will test both their strength and their faith. Even if they survive the island, can they survive each other''s company?