Sky's concerns for the future of she and Planet become prescient. The weather patterns turn toward longer and colder winters. The three travelers discuss the changes with characteristically different attitudes. The first traveler is optimistic that the warm seasons will return and that they are just experiencing a colder pattern. It reminds the others that its optimism was borne out before.
The second traveler insists that this time there is no reason to look forward to a better future. The world is growing inexorably colder and they will eventually freeze and die.
The third traveler is calm and content as always, and find fascination in the depths into which they must migrate in order to find the last remnants of warmth. It is prepared for another long sleep.