Pharaoh Runihura is back in this sequel to "The Rise of Sekhmet." Amsi discovers the body of a Priestess of Isis in the desert with a defaced Buckle of Isis. Who is she and where did she come from? Was she delivering a relic of Isis to Runihura? Can Azizi and Amsi stop the pharaoh from obtaining another holy relic while curing the plague? Amsi and Azizi's friendship faces the ultimate test when Amsi must choose to sacrifice himself to save the King of Thieves.