Chapter Eight WE DECIDE TO follow the railroad tracks to the city, because none of us is good at navigation. I walk from tie to tie, Tobias balances on the rail, wobbling only occasionally, and Caleb and Susan shuffle behind us. I twitch at every unidentified noise, tensing until I realize it is just the wind, or the squeak of Tobias’s shoes on the rail. I wish we could keep running, but it’s a feat that my legs are even moving at this point. Then I hear a low groan from the rails. I bend down and press my palms to the rail, closing my eyes to focus on the feeling of the metal beneath my hands. The vibration feels like a sigh going through my body. I stare between Susan’s knees down the tracks and see no train light, but that doesn’t mean anything. The train could be running with no hor