Or, worse, yet, a dead mouse someplace in the guest/sewing room.
He wasn’t there last night while I was working, but, boy, howdy! is he there today. About knock you over, and of course there are a gazillion places he could be.
The Squire and I did a bit of searching today, but we both had several other things we needed to do – fortunately out of the house – so tomorrow we will tear the place apart. Most of my costumes are in tubs with tight-fitting lids, but there are still oodles of disgusting places the rotten critter could have crawled into.
Wish us luck.
thisendoftheswamp 
So we apparently have had a rat chewing through some outside wiring. Some friends down the street informed us a day later that our rat had moved to their house and died inside one of their walls. A day or so after that, they informed us that it wasn’t our rat after all . . . it was the neighbors cat.
Good luck with finding the critter.
This reminds me of the church mouse which had met its maker in the sacristy. We searched high and low for that critter but we were unable to find its resting place until long after its smell gave up the ghost. His mummified remains were located under one of the drawers in the sacristy. Hopefully you will have better luck.
We cleaned the TV side of the room today, and found several generations of dead stink bugs, but no mouse. Tomorrow we’ll tackle the sewing room side.
Many years ago, a mouse died in The Squire’s car, which we discovered when we turned on the a/c. The mechanic said it would cost a bundle to dismantle the dash, because of the airbags. We live where we can leave the car unlocked, so we just left the windows rolled down until the miasma had cleared. Sometime later, we opened the ashtray – no idea why – and there was the mouse, in all his funky glory.