From the back of the book:
EN GARDE! FIGHT FOUL BEASTS OF THE NIGHT!
The year is 1636 and France is a troubled nation. A great and terrible evil gnaws at its core and darkness stalks the land.
All that stands between chaos and order are the King’s Musketeers.
Explore a France of swashbuckling action, powerful magic, daring deeds, courtly intrigue, witty repartee, and vile monsters! The characters are France’s bravest and proudest defenders, the King’s Musketeers. Pitted against them is a plethora of corrupt nobles, black magicians, fell demons, and twisted secret societies. Set at the height of power of Cardinal Richelieu and Louis XIII, All for One: Régime Diabolique mixes the action of literary works such as The Count of Monte Cristo and The Three Musketeers with horror and intrigue to create a unique, vibrant setting.
Strap on your sword, salute the King, and prepare to cross swords with the creatures of darkness!
This version of All for One: Régime Diabolique is a musketeer roleplaying setting for Savage Worlds RPG.