From publisher blurb:
Lady Adoncia Carvendona, The Baroness, wears many masks: gracious noblewoman; patroness of the arts and humanities; saboteur; radical mastermind; supervillain. From her base in Vadashar, she sits at the center of a vast criminal and smuggling empire. A true zealot, Adoncia borders on the megalomanical, believing her efforts to create a better world immunize her against the consequences of her schemes. Ultimately, she sees herself as a god creating chaos for the sake of birthing a better world (one created in her image).
Included:
A brief history of the Free City of Vadashar
Deep backstory and character descriptions for Lady Adonica and her most powerful minions
Information about her international organization hierarchy
Faction goals, desires, and methods
Introduction to a new cult
Adventure hooks
New magic items
NPC stat blocks
Advice for incorporating a supervillain like Lady Adoncia into your campaign