Book IV of the Egypt series, continuing the story of the Warlock, Taita, master of magic and the supernatural. Egypt is struck by a series of terrible plagues that cripple the kingdom and then the ultimate disaster occurs - the Nile fails. The nourishing, sustaining waters dry up. Something catastrophic is taking place in the distant, unexplored depths of Africa, from where the mighty river springs. Taita is the only man who might win through to the source of the Nile and discover the cause of its failure. But no-one knows what terrible enemy lies in wait to ambush the Warlock in those mysterious lands at the end of their world.