Kael was found floating in the Blue Divide by Obsidian and Hunter Predd. Obsidian deposited him on an atoll so Hunter could check for life signs. Hunter’s check revealed a pulse and a heartbeat, slow and shallow breathing and also that his eyes had been removed and his tongue cut out. He was suffering from exposure and lack of nourishment.
It was discovered that he had been brought to Castledown, his eyes gouged out and tongue removed. He was secured a to chair and Antrax began to control his mind. He was fed images of things that were not there and was tricked in to using the magic of the Blue Elfstones to defend himself. The magic used was captured by Antrax and used to power its systems. He was held there for thirty years.1Antrax – pp 205-206