The world is split down the middle. Two schools of Power control everything and unlicensed use of Power is outlawed and punishable by death. Mercenary Nix is seeking a big score when he and his team take a job in Nin that looks profitable. On the other side of the world, orphan Wren plays with small amounts of Power, seeking to learn as he hides from discovery. Both Nix and Wren will soon find themselves in the middle of a war that will not only reshape the established order, but will cause the very earth to quake.
Good old-fashioned fantasy ass-kickery. It harks back to the 80s/90s Forgotten Realms run (Azure Bonds, etc.), which I personally consider to be the Golden Age of high fantasy fiction.