Commandant Nerval

His profession is an expert on bibliography. His work is a secret agent. He leads a double life. Officially, he works as a consultant on ancient books. However it also has a second, hidden session. He's a secret agent, working for his friend and the head of Colonel Mangina, head of the French secret service. He has his secret motives: a few years ago his wife was killed in the explosion, arranged by the foreign secret service, and Nerval vowed to avenge them. He brings up the only son of Thierry and sees it as justification for everything he does.