Tanta Hagara was an evil annis who worked her way into the Blue Bear tribe of the Uthgardt. A servant of Hellgate Keep and Grintharke, she corrupted the tribe with base rituals while posing as their shaman, to such an extant that the tribe were shunned by the rest of the Uthgardt. She sought the Grandfather Tree, an ancient embodiment of the forest, reputed to hold the Hall of Mists, a temple dating back to the creator races. Legend said that gates to other worlds and the Abyss and the Negative Material Plane existed somewhere in the Hall.