Bane foi morto por seu aprendiz, Darth Zannah em 988BBY no planeta Ambria. Ela usou uma mistura de habilidades com o sabre de luz (embora ela tenha perdido sua arma para Bane antes de sua derrota final), Dark Side force tendrils e algum tipo de poder que enevoe a mente dele.
No momento de sua morte, ele transcendeu a forma física e tentou controlar o corpo dela, mas seus poderes de força eram muito strongs e ele simplesmente se dissipou.
O evento é descrito (com alguns detalhes consideráveis) em Darth Bane: Dinastia do Mal
From a safe distance, the Iktotchi had watched the two figures [Darth Bane and Darth Zannah] from her dreams wage battle. She was an impartial observer, having no preference as to which one would emerge victorious. She only wanted to serve whoever proved the stronger.
The conflict had been brief but intense: she had marveled at the speed of their blades, their movements so fast she could barely follow the action. She had felt the awesome power of the Force unleashed through bursts of lightning and the sinister tendrils that crawled up from the ground. She shivered in anticipation with the knowledge that she, too, could one day learn to wield such power.
She had seen Bane knock the woman to the ground and slap her weapon away, only to have his arm hewn off by the touch of one of the black tentacles. And then there had been a flash so bright she had been forced to close her eyes and look away.
When she looked back Bane was gone, his body reduced to a pile of ash. The blond woman still lay on the ground, dazed but alive. The deadly tendrils were nowhere to be seen.
Cautiously she approached the scene. Bane's severed arm lay on the ground, but the rest of his body had been consumed by the crimson flare. In the instant before she had looked away, however, she had felt something.
Respondendo a rumores na Internet sobre a sobrevivência de Bane, o autor escreveu uma FAQ para seu site ;
I thought it was pretty clear in my writing. I wrote the scene from Cognus’s point of view to keep you guessing to the last instant, but when Zannah proclaims “Darth Bane is gone. I am Darth Zannah, Dark Lord of the Sith and your new Master,” I thought it would be pretty clear.
The whole thing with Zannah’s hand twitching was only to show that some part of Bane had passed through to her. How much – was he still “alive” in some way, or is it just a small part of his identity imprinted on her – was supposed to be the ambiguous part. But I never wanted people to assume Bane had taken over Zannah’s body successfully.
Note que, como toda essa história é encontrada em um romance "Legend" da UE, nenhum desses eventos é considerado parte do aceito canhão de Star Wars .