the food supplies amazed her but did not reassure her as much as she might have thought : the donner party kept recurring to her , not with thoughts of cannibalism ( with all this food it would indeed be a long time before they were reduced to such poor rations as each other ) , but with the reinforced idea that this was indeed a serious business : when snow fell , getting out of here would not be a matter of an hour 's drive to sidewinder but a major operation .