It's not quite dusk when we stumble over the tracks on our way to the train, but we don't have much of a choice in the matter. We're almost killed by Chime's people before they realize who we are and let us pass.

Socrates staggers the last few feet, meeting Chime as she descends from the steam locomotive. Five cars have been attached to the back of it, one of them overflowing with coal.

"We need to go now." He's panting, clearly desperate. This will not go ...