Say, had I mentioned we've come down with a case of ghosts? It's a curious thing but we've heard a couple of unexplained noises in rooms we're not in. The obvious explanation is that something fell over. I come from a long family heritage of putting stuff on other things until they fall over and then leaving the pile where it was. We're just not good at leaving horizontal surfaces uncovered. However, quick examination found there wasn't anything fallen over. And sometimes it'd be from a room that didn't have anything to fall over, such as the hallway.
So it's spooky stuff, yes. It invited a bit of really scary speculation: what if someone had snuck into the house and was living in rooms we weren't in? It's not an impossible thing. And after all don't you ever encounter a door opened that you'd swear you had closed, or a light turned on that you can't think should have been on? But with some sense of terror I investigated, including throughout the attic and underneath the bed and the guest-room futon. Nobody there. Snuck out the window? Can't see how; particularly, how would you close the interior widows and close the storm windows from outside without being on a ladder? And our house is old; you make noise roaming around, but you make that noise everywhere you go, not just one footstep.
Animals are also challenging, as explanations. Anything small enough to get into the house shouldn't make such a discrete racket, and should leave debris in its wake. We're left with ghosts who've suddenly turned clumsy.
The least unsatisfactory explanation we have is that maybe, given that December was so ridiculously warm --- we had multiple days in the 60s, for crying out loud --- the seasonal settling of the house has been thrown off. So they're just oddly-timed and -placed expansion and contraction sounds. But ghosts make sense too and would add a bit of charm to our property listing.
Still, it hasn't come back again since the weather turned rather colder and much more seasonally appropriate.
Trivia: Shares in the Merrimack Manufacturing Company, the textile firm organized in Waltham, Massachusetts, in 1821 to produce up to two million yards of cotton cloth yearly, cost $1,000 each. The company was soon returning 30 percent annual profits. Source: Big Cotton: How a Humble Fiber Created Fortunes, Wrecked Civilizations, and Put America on the Map, Stephen Yafa.
Currently Reading: Sizesaurus, Stephen Strauss.