Shadow Thieves

Note: no Wikipedia article exists for this group.

A secretive organization of criminals; the Night Masks or Fire Knives of Amn. They were all slaughtered in the purge order issued by Aerik Maelistair, prior to his coronation as High Lord. Antheri Grimward, their leader and representative on the Council of Six, was the last of them to die.

With the Shadow Thieves out of the way, the Night Masks can (and will) spread into Amn. One would expect Vohr Kethon and Cyrilla to be involved in this, somehow.