The cats clustered nervously around the living room stove. A mysterious creature scrabbled in the stove pipe. I'm guessing the Easter Bunny got trashed at the after party and started dissing Santa Claus. This led to the inevitable challenge bet. Guess who lost.
I opened the clean-out door on the outside of the chimney. Two cats tried to enter, but pulled back quickly. When I inserted a mirror to look up and down, I heard a hissing noise. An unidentifiable appendage flicked up toward my hand, so I withdrew it. I draped an old towel over the lip of the door as an escape ladder. I'll check it later.