Greta hums, both in appreciation of the map's usefulness and to demonstrate that she is awake and paying attention and not at all inclined to doze off on Iman's shoulder. "I'm fine," she says. "Much better now than I was an hour ago."

And not tired in the least. Never mind how good it feels to have Iman stroking her back - something her own mother used to do when she was under the weather, years and years ago. Greta casts about for something to hold her attention, then says, "I've never seen the trains, though." Heard of them, briefly, but never been on one. Truth be told, what little she'd heard had sounded rather terrifying. "What's that like?"