A strange woman shows up at a teenage girl's window, and takes her to humanity's last battle, hoping that she will choose to turn the tide of the war at the end of the universe. I found this one a little too ambiguous to be really effective. It was an interesting idea and had some interesting repercussions but I think there was more story to tell, and it could have been developed a little more. The beginning and end were also written in 2nd person narration, which is so, so hard to do right.