Mistery

I’ve just finish an amazing Clementoni jigsaw puzzle made of cork – an old Roman map. There is only one problem – one piece is missing. I purchased the puzzle three weeks ago and it was quietly lying on the sofa waiting for my attention and me waiting for some free time. I don’t remember throwing anything from there while doing the house cleaning. However, the piece is missing and I'm afraid that this is not due to a fabric defect.