Special Valentine's Day episode!
I really feel like this is something that would be expected, as he would have to have taken the skeleton out of his little box and walked onto stage with him, unless the skeleton was a master of disguise, as the story title implies. Again, I prefer to think of the ventriloquist as a fellow who had a psychotic break and so murders little people and takes their skeletons onto stage with him, because it is funnier.
Add another one onto the "Actually a Skeleton!" cover meme. From decades ago.