Gaze: I moved into the building next to Pixie when I was 11. She blew bubbles through my window. I shot my Nerf gun through hers. We both had secrets, but one of us was fated to get hurt. I wanted it to be me. ...She walked a tightrope five stories up just to save my life. Pixie: When I was afraid of the dark, he would shine a light in my window. We shared our popsicles, and I taught him how to get a good swing on the playground. I never imagined I'd have to decide who got to live and who didn't. I chose him, and he could never know.