Lost City of the Andes (Peru)

Six months after uncovering a pharaoh's erased history beneath the Egyptian desert, the compass Amelia Fox inherited from her grandfather has gone quiet again, resting on its wooden stand at Foxglove Manor. Then, one ordinary evening, the needle stirs and swings southwest, toward Peru, toward a valley that has kept a five-hundred-year-old secret so completely that most historians assume it never e...