I liked the rich character development and twists. How the character of fire started out as a minor extra, just sitting around in a cupboard in a spaceship at the behest of a crazy cult, then became a major adversary as the shuttle was launching. Afterwards it betrayed the cult and joined the pc's and was the only thing keeping them alive, but it was betrayed when they got snow suits and tossed it by the wayside, and again rejoined the cult.