pat9
I too have a "black hole" in my house. Last year I replaced the battery in my car key. I took the top off, put the battery in and when I went to put the top back on it had disappeared. I had not moved more than 2 feet and I have not found it since. Usually things do materialise later, buy not this. I seem to spend half the day looking for things though.
True, there is a black hole, but sadly it’s in our memory rather than in the house.
You may have slipped the top into a pocket, or it rolled off wherever it was and under something, or, or, or.......
I do that sort of thing all the time, you have to be a detective and review all your moves and even what you were wearing.
DH lost his favourite Winter beanie hat....we bought another.
The original turned up in my coat pocket.