From the back of the book:
Rapier's Edge is a collection of exciting role-playing adventures set in the land of Théah. It contains both ready-to-play scenarios and dozens of quick plot hooks just waiting to be filled out. For fans of the 7th Sea universe--and anyone in need of a swift jolt of imagination--this book has what you need. Rapier's Edge includes:
--A collection of complete adventures, fully developed and ready to play!
--Plot seeds and adventure hooks spanning every corner of Théah!
--A new live-action scenario: Giovanni Villanova's Grand Ball!
--An update of Théan history, outlining developments up to 1675!
--Fully compatible with both the d20 System and the classic 7th Sea system.