the fall scenery had changed to winter , and she could hear the crunch of someone walking in freshly-fallen snow . i had not flown with the relief crew before . '' she stared at jacks face , waiting for him to make the next move . 'that 's really the difference between us , is n't it ? and when are you going to show up for your shift ? how could i even begin to explain that to her ? he finally grumbled something , then stared at the railroad tie wall and said , `` i 'm sorry i disturbed you . 