Well, Sally has a good memory because tonight after she had eaten she went over to look at that box, then gave a sort of "Whatever!" shrug about it and did something else.
She remembered, and it has been days ago.
That was Sally's one experience of motherhood. It will be funny if she keeps checking. Does she know you moved the bunny? You didn't actually show her the baby being moved did you. I wonder how long she will keep checking? Cats are funny about what they remember. They forget where they just put a toy, but remember something you did years ago that annoyed them.