Sophie Neveu is the granddaughter of Louvre curator Jacques Saunière. She is a French National Police cryptographer, who studied at the Royal Holloway, University of London Information Security Group. She was raised by her grandfather from an early age, after her parents were killed in a car accident. Her grandfather used to call her "Princesse Sophie" and trained her to solve complicated word puzzles. As a young girl, she accidentally discovered a strange key in her grandfather's room inscribed with the initials "P.S.". Later, as a graduate student, she had arrived early for a spring-break visit to her grandfather's house in Normandy and, silently horrified, she had observed him participating in the Hieros Gamos, a sex ritual—with his own wife, who was believed to be dead. The incident le