Son of France : a Christopher Kruse novel

Christopher Kruse has remained in France working for the ambitious Mayor of Paris, wandering streets haunted by his lost family and watching over a woman and her daughter. But when a charismatic politician is murdered by a grenade attack in the Jewish quarter, Kruse catapults back into the maelstrom of organized crime and dirty politics. A young woman named Zoé, working for a shadowy division of the French clandestine services, hires Kruse and his old colleague and mentor Tzvi to hunt down and assassinate the killer. Sequel to "Come, barbarians".