A dark family secret. A bizarre cult. A talisman that can destroy entire cities. Darwin must stop the skeletons in his past... before they bury our future.

Darwin Lacroix is a wreck. An ancient booby trap nearly kills his wife, Eyrún. A tunnel under their home hides an alchemy lab with strange crystals. And a tabloid reveals his forebear stole American gold, threatening his job as Vatican special director of antiquities. Then he's slapped with a paternity suit.

Modern tests show the crystals are a scientific holy grail—an unlimited energy source—worth billions. But the sword has a double edge. The gems could make pocket-sized nuclear bombs. And thousands more are buried in Egypt. When North Korean agents hack the research, they rush to steal the secret for their glorious leader.

Can Darwin and Eyrún stop them from digging up a vile weapon?