bIn this third installment of the iNew York Times ibestselling Charlie Thorne series--which 1 iNew York Times ibestselling author Chris Grabenstein called a real page-burner--Charlie tracks down Cleopatra's greatest treasure in Egypt.b pCharlie Thorne is a genius. Charlie Thorne is a renegade. Charlie Thorne isn't going down without a fight. pAfter tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet. pIn 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her wealth and influence, so she hid it before dying by suicide. She left a series of devious clues behind for her children to find it, but they were lost to history...until now. pIn a breathless adventure t