The Briar Queen was once a death mage of formidable power, a great enemy of Shadespire whose undead armies breached the city walls and threatened to tear down all that the Katophranes had built. Only after unthinkable bloodshed was the Briar Queen defeated, captured and sentenced to an eternity of imprisonment and torment in the Nightvault, far beneath the city streets. Years passed, and this agonising existence slowly drove the Briar Queen to madness. Trapped for centuries in a cell of obsidian shadeglass, she was consumed by misery and despair, yet an ember of hatred for those who had condemned her to this fate still lingered. She was the perfect tool for Nagash to unleash upon those who dared to trespass within the Mirrored City. The Great Necromancer dragged her screaming essence from her crystal tomb and fashioned her inchoate malice into the dread form of a banshee, with her former mastery of necromantic magic still intact.