The fifth instalment of the Derwyddon series. With his apprentice, Taran, on the brink of death, the druid Gwynlan reaches the healing sanctuary of the sacred isle of Anglesey. It becomes clear that Gwynlan’s quest will take him far to the North. Crossing stormy seas, Gwynlan and his companions find themselves amidst the feared Picts who reveal that the talismanic fate of the Cauldron of Destiny is entwined with that of their Royal Stone, recently stolen by Viking raiders. Regaining of the Stone is crucial, made all the more perilous by the malicious presence of the Holy Vengeance.
