Miriam bat Isaac, a budding alchemist in first-century CE Alexandria, welcomes her twin brother Binyamin home to fight his last gladiatorial bout in Alexandria. But when he demands his share of the family money so he can build a school for gladiators in Alexandria, Miriam explains that he forsook his share when he took the gladiatorial oath. When she refuses to loan him the money for what she feels is a shady, and dangerous, enterprise, Binyamin becomes furious. Soon after, the will of Amram, Miriam's elderly charge, turns up missing, Amram becomes seriously ill, and the clerk of the public records house is murdered. Could Binyamin really be behind this monstrous scheme? If not he, who could be responsible? And is Miriam slated to be the next victim?