This is my puzzle ...I was working on music sheets at the piano. I shuffled them a bit, reorganized and did remove some from the area...but now no matter how many times I retrace my steps, check each area in question....there is one sheet missing. I have looked inside the top of my piano...where the hammers are and I've pried open the bottom section. So rather than be frustrated...I redid the sheet,with a defiant air, I'm sure ..and right now I have a trap set. I put the finished sheet in the same place where I last saw the other one....and I'm waiting for the paper thief