Young Will and Master Gwydion, a wizard, struggle to save the Realm from the stones of power.
Gwydion was here when Arthur rode to war: then they called him 'Merlyn'.
But for his young apprentice, Willand, a fearsome on in the ways of men and power lies ahead.The Realm is an England that is still magical.
It is a land criss-crossed by lines of power upon which standing stones have been set as a secret protection against invasion.
But the power of the array was broken by the Slaver who laid straight roads across the land, and built walled cities of shattered stone.A thousand years have passed since then, and those roads and walls have fallen into decay.
The dangerous stones are awakening, and their unruly influence is calling men to battle.
Un Gwydion and Will can unearth them, the Realm will be plunged into a disastrous civil war.
But there are many enemies ranged against them: men, monsters and a sorcerer as powerful as Gwydion himself.