i tense up , gripping the knife , still in a crouch-i could make a run for it when the door opens ; i could lunge at the scavengers , swipe , swipe , take out an eye or get in at least one cut , make a run for it-but before i have time to plan or choose , the door is swinging open and it 's julian who comes toppling through , half-conscious , so bruised and bleeding i recognize him only by his shirt , and then the door slams shut again .