Set amidst the ruins of Roman Britain, Merlin's Sister is not only an epic saga of sweeping battles, emotional turmoil and political intrigue, but also the intimate story of a family. Ganieda, equal to her brother in wit and wisdom, is Merlin's sounding board, sometime goad, and often verbal sparring partner. But their easy banter belies the seriousness of their mission - to protect the Britons from invaders who would destroy their way of life.

When malevolent forces plot to bring King Arthur's reign to a premature end, will Merlin's sister be able to expose the scheme in time to save both her brother and her country?