He was the mastermind of the heist of the Crown of Neverwinter, intending to use it to assert the Nasher's control upon the city. Unfortunately, many other groups also wanted the Crown and in the end it was recovered by an adventurer recruited by Sergeant Knox of Lord Dagult Neverember's army.
Karzov went onto Neverember's black-list so he was chased all over the city by Knox's adventurer until they finally located him in a building in the Blacklake district. In the end, the adventurer defeated him.
- Karzov article at the Official Neverwinter Wiki, a wiki for the Dungeons and Dragons: Neverwinter MMORPG.
- Karzov article at the NWNWiki, a wiki for the Neverwinter Nights games.