An intrepid girl must return a magical artifact to its rightful home in this archeological fantasy adventure for young readers. Eleven-year-old Theodosia Throckmorton is once again setting off for Egypt-this time to return an Emerald Tablet that contains some of the ancient world'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, yes-help her mother dig up treasures on her archeological expedition. But nothing ever works out as planned, especially when a precious treasure suddenly appears, and then just as suddenly disappears . . . When the Serpents of Chaos get involved, Theo finds she's digging up more trouble than she expected!