@Vimes I'll start with you.
The structures here are pre-existing, so really there is no entirely above-board reason for me to show up and start poking around. But I am still going to.
I may have bitten off more than I can chew with this one, though. It isn't any kind of archaeological discovery I have made, and I am not exactly sure who one calls in this situation. In the crawlspace under your house I found the lair of a tiny dragon.
