"Three golden statues of the Egyptian goddess Sakhet. Three secret compartments concealing three pieces of a puzzle. Katherine, a brilliant scientist and the founder of the Ekaterina branch, fled to Egypt to escape the wrath of her brother Thomas. She took her Clues with her, and protected each of them with puzzles that have confounded Cahills for centuries. One by one, her Clues have been unlocked by members of her branch, and sometimes by others. But one of Katherine's Clues remained undiscovered--until Grace Cahill came along."