“I won’t be long,” Camille said to Lucien. “Please be careful,” he said with knitted eyebrows. She smiled and kissed him lightly on the lips. “I will,” she promised. Camille left the apartment, destined for a clandestine meeting with her mysterious mentor, a man who many thought no longer walked in the world of espionage. He did—but only when absolutely needed. A source sought only in extreme emergencies, Camille had little choice but to contact him. She had to get the diamonds to the allies as quickly as possible. And she couldn’t risk giving them to the wrong party. She walked through the grounds of the Sorbonne. It was the college she had attended, its buildings, classrooms, and walkways so familiar. Students hurried past her, carrying textbooks as they went to lectures. Professors

