Where else was there really to go in the wake of Haven? Where else in the wake of the Herald's death? He couldn't just keep wandering the lands hoping to find clues about the Champion and the Hero, not on his own. Here he can do something.

Even if that something is debating the intelligence of demons in an old fortress filled with the remnants of Grey Wardens practicing blood magic. "Perhaps we should consider assigning a certain number of shardbearers to any given outing. So there may always be two or three on hand for such a situation. I can't say I envy their powers if it means having the pain of having the Fade etched into their skin."