The plot thickens!
Incidentally, they're up in a fire tower. That's not a hotter version of a water tower -- it's a tower in a national park or another wild place, used to watch for forest fires from.
Oh, you may have noticed a Tumblr link up in the tabs -- it's not just comic stuff, but it has some commentary, sketches, research, and reference photos. Reblogs gratefully accepted.