When you guide the boy in your care to the battlefield in Afghanistan; when that boy is fourteen-year-old Jarvis Juniper and you are his guardian angel, there are questions to answer. Ankarra returns home to her own guardian in a bid to save Jarvis. High in the tree houses of another dimension, Jacinda's shrouds are lit and the fool's journey revealed.
With his dad missing in action, Jarvis becomes a vulnerable outsider. Trapped by his grief and uncertainty, he finds escape in graffiti. His creativity unwittingly opens new doors to old realities. Is it a dream or just the fumes from his paint tin? Stepping in to one of his own art works, Jarvis meets Percy on a path in an ancient wood; little does he suspect that path will lead him all the way to Camelot.