Anyway, at the bottom of the back cover is a festive little train set, which plays a suitable melody as it chugs around the bottom of your Xmas tree. The Christmas Express has a little model stream train (it's well known that Santa prefers steam to diesel or electric), a tender, wagon (for sweeties) and caboose, all in silver, green and red.
I glanced at the engine, noting that it was a very American western design, with the typical cowcatcher, spark-catching funnel etc. I then looked at the wheels and thought "That's an 0-6-0. Western locomotives were mostly 4-4-0's."
My only excuse is that some of my novel-writing research must have sunk in. Still, at least the toy train isn't held together with the link and pin system. Dangerous, that was.