The Inox and demons you encountered on the way to the Icecrag had some crude scratching mentioning a 'voice' on among their belongings. There was a cave nearby the Mountain Pass that seemed to call to you. You feel a subtle and powerful urge to explore the cave.
The cave contains a powerful creature, known only as 'The Voice'. With it's guidance, you were able to restore the creature's booming, bone-rattling voice. It asks that you help free it from bondage, but The Voice's motives remain uncertain.