At Pembroke Castle in medieval Wales, 11-year-old Prince Gavin, 13-year-old orphan Philip, and 15-year-old blacksmith's apprentice Bryan, brought together in friendship by the one they call The Wild Man, embark upon a quest to save The Wild Man’s life when he is accused of murder and robbery. If they have any hope of succeeding, the three will have to confront their fears and insecurities, and one of them will have to disclose the biggest secret of all. But it is the arrival of King Arthur and what he reveals that surprises characters and readers.