Egypt has been struck by a series of terrible plagues, killing its crops and crippling its people. Then the ultimate disaster befalls the kingdom. The Nile fails. The waters that nourish and sustain the land dry up. Something catastrophic is taking place in the distant and totally unexplored depths of Africa, from where the mighty river springs. In desperation the Pharaoh sends Taita, the only man who might be able to find his way through the hazardous territory to the source of the Nile and discover the cause of all their woes. But not even Taita can have any idea of what a terrible enemy waits in ambush in those dark lands at the end of their world.