Invariant across timelines.
Incidentally, I have failed to post about the Nazi train so far. It swapped with a real train in a tunnel under freak circumstances involving Widget, which is why Moira and Callisto are stranded. This Nazi train is from "Reichsrail Englande", which is terrible German (they want Reischsbahn, and that's ignoring the extra 'e' which also makes its unwelcome appearance in "Hauptman Englande"). But that's not even the funny part - the Nazi British Rail has somehow managed to also devise the British Rail double-arrow logo, which was created in our timeline in 1965. And why not. It's a design classic, after all, much better than those Dutch or Polish or Swiss rip-offs, and I'm glad it remains part of our signage even though British Rail is now but a distant memory.2 Slightly disappointed they didn't try and swastika-ise it, though.
The swap is made, but Widget freaks out and there is an explosion and all the player characters vanish. Oh noes! I have a feeling we're about to get the prototype for Exiles.
"Thames River". I don't care that it's the editorial voice reflecting U.S. usage. The name of the thing is "River Thames". If you call it "Thames River" you are wrong. Just as wrong as I would be if I started calling those watercourses either side of Manhattan the "River Hudson" or (even better) the "River East".
1. When other kids were reading comics, I was reading George Orwell. And by that I don't just mean Nineteen Eighty-Four and Animal Farm. Sure, I enjoyed those. In fact, I liked them so much that I decided to read all his other books. The school library had Down and Out in Paris and London, Keep The Aspidistra Flying and The Road To Wigan Pier, which a 12-year-old me somehow managed to get through (when she wasn't reading Peter David's Star Trek novels, or Tolkien's History of Middle-Earth). It's a shame they didn't have Homage to Catalonia, I didn't read that until much later. In 33-year-old me, well, I recognise a certain pattern of intensity in reading projects.
2. Bet you didn't expect to read about the privatisation of British Rail on a blog about the X-Men, did you?