From publisher blurb:
Rule the Realms
You've survived countless death traps, slain hordes of monsters, and overthrown your fair share of petty warlords and would-by tyrants. Ever wonder what it would be like to hold sway as an influential member of the royal court, a mighty general, a powerful religious figure, or a successful merchant prince?
The Power of Faerûn campaign supplement shows players and Dungeon Masters how to play high-level characters and run high-level campaigns in the Realms. It presents worthy challenges and opportunities for heroes who have had their fill of crawling through caverns and plundering forsaken tombs.