From the Back Cover:
Amid the swash and buckle...
...become a Hero!
Lords and ladies play politics in the corridors of power, where a misspoken word means life or death. Revel in the intrigue that gives the world of Untamed Empires its name.
This Adventure Toolkit contains details of life among the imperial courts, offers 75 additional feats (including three new supernatural professions), and includes a complete adventure for 250K characters that explores the murkiest of schemes inside the holy Church of Napri.
For for all, and all for fun!
From the Introduction:
What is The Free Musketeers?
The Free Musketeers is a roleplaying supplement, the third installment in the Untamed Empires setting series. It's designed to show you the countries, governments, and people of the New World continent so that you can create stories and adventures there. You'll find world information (Section One), an entire adventure (Section Two) and 75 new feats to play with (Section Three).
This book fits in with the other Untamed Empires supplements, but it can also be played solo with just the main Suzerain book for rules. Free free to cherry-pick sections and ideas, as well. It's your world now!