I'd always thought of Sturmhalten as the center of a small principality. I was rather astonished when it was described as the place that stopped the Heterodyne in the prologue. It must be a much stronger castle than my initial impression; bringing Tarvek's base more in line with Agatha's Castle and Gil's Castle. Riddled with secret doors and passageways. I'd love to get a tour of it during peacetime.

And Andronicus, Tarvek all grown up and dangerous, full of twisty backroom deals. Those two would get along just fine.