Two characters just witnessed the murder of their parents (well.. kinda.. but for our purposes, witnessed works). One character is about 16, the other about 13. The 13-year-old is injured - a really bad dog bite to the arm which is roughly bandaged. I figure he's going to be infected and therefore in a fever and mostly unconscious. The girl is physically okay.
They ate the night before, but nothing heavy - a sandwich or two. The girl throws up, probably emptying her stomach, when she wakes up (at dawn, if it helps??). They leave the scene of the murder the next morning.
For the purposes of the plot, I need them miles away before they are forced to stop to get food, medical supplies, etc. If I have to, I can have food conveniently left in the car (they were camping at the time), but it'd be a wierd thing to do in this situation, so I'd rather not.
So.. to get to the question *slaps self* - how long would they be able to go without food? I'm thinking it'd be at least five or six hours before the shock wears off and the girl starts to think, "Hey, I'm hungry." The boy... I would assume I can get away with a day, if he's in a fever. When I was younger I went a day and a half without food when sick, just water occasionally.
Would try to google this, but it's got a lot of variables. And for the record, yes, I know people can SURVIVE a week without food; I just want to know when hunger would begin to be overpowering (for example, causing the girl to not be able to concentrate on driving).
EDIT: The family is planning to stay in a cabin for a week, therefore they moved all of their stuff into said cabin... thanks for the help, though.