Professor Bernice Summerfield, archaeologist and adventurer, has discovered a Pyramid on Mars. Inside she finds her old friend the Doctor is fighting a battle with the Osiran God Sutekh. It is a battle he is losing.
Egypt in 2015 is an unsettled place. The trade in stolen antiquities is a murky one, and it's about to get a whole lot worse, as an ancient and terrible force enters the market.
Ancient Egypt is enjoying a golden age - peace, prosperity and a powerful Pharaoh. But something is moving through the sands. A forgotten god requests an invite to the feast.