Le Chevalier d'Eon 5

In a Paris haunted by the specter of revolution, only the Chevalier d’Eon stands ready to safeguard the peace. The threat: a strange cult armed with deadly black magic. D’Eon must face another killer cult member, but this time, the enemy is not alone. He commands an army of demonic rats–the most terrifying foe the Chevalier has ever faced! From the Trade Paperback edition.