Caria Felsoul was a night elf demon hunter and one of Illidan's most cunning pupil. She ultimately turned against the Illidari and joined the Burning Legion, enticed by their promises of power. Impressed by her skill, Kil'jaeden granted her the famous Aldrachi Warblades. During the Battle for the Broken Shore, Caria was summoned by Gul'dan to the Tomb of Sargeras.
After Akama rejoined the Illidari, images of Caria and Varedis Felsoul appeared on the Fel Hammer and invited the demon hunters to join the Legion, though Varedis hoped they would refuse so he could kill them and get his warglaives back. The Illidari discovered that Caria and Varedis were on the Legion world of Niskara and invaded it with the Fel Hammer. With Kil'jaeden himself watching in amusement, Caria and Varedis were slain by their former comrades. Caria begged Kil'jaeden to save her as she died.