In this fourth book in the series, Theodosia sets off to Egypt to return the Emerald Tabletâ€”embedded with the knowledge of some of the ancient worldâ€™s most guarded secrets. Accompanied by her cat, Isis (smuggled along in a basket), Theo plans to return the artifact, then explore the mysteries surrounding her own birth and oh, yesâ€” help her mother dig up treasures on her archeological expedition. But nothing ever works out as planned, especially when a precious treasure appears suddenly, and then just as suddenly disappears . . . When the Serpents of Chaos get involved, Theo finds sheâ€™s digging up a lot more than she expected!