The Eleventh Plague

Egypt is struck by a series of plagues that cause great damage to the kingdom, but the worst is yet to come: the Nile stops flowing. Somewhere deep in the unknown heart of Africa, where the mighty river has its source, something catastrophic must have happened.
The Pharaoh is in despair and sends Taita out - the only man capable of reaching the source of the Nile and finding the cause of all the trouble. But no one suspects what terrible enemy The Warlock is waiting for him in this mysterious land at the end of their world.