Could a set of hieroglyphs be about to change the face of Ancient Egypt for ever? Doctor Viv Davies claims that this recent discovery proves that in 800 BC, Egypt was under the rule of 'black Pharaohs' from neighbouring Nubia. As the British Museum prepares an international exhibition of additional finds that seem to corroborate his assertion, this programme accompanies Doctor Davies on his final digs to unearth more clues to the lives of these long-forgotten rulers. 4/6.