I'm not the same girl who was unable to save her friends anymore.
I really didn't want to kill the Elder brain, but leaving it alive would only created more victims like Mota and Sakura and I just couldn't forgive those Mindflayer for destroying knowledge.
It's gonna be good getting home to Arenia and begin looking for way to bring back Mota and Sakura, maybe the infested library room hold a clue.