Where is the Shoe?

Grandma Gaub and I were getting the girls ready to go for a walk today (thrift store shopping, actually). She put one shoe one Ella and went to get the second but could not find it. I couldnt find it anywhere, either. I knew they had both there, but then...one was just *gone*. Luckily, we have TWO pairs of this shoe (go figure!), so I grabbed the right shoe to the other pair and we went about our walk. A couple of hours later, we returned home. Grandma was helping Ella take off her shoes and we found the shoe! Can you find it? (I seriously cant believe we didnt see it for two hours...)
(Nora was not very happy here. Surprise, surprise she wanted Mama to hold her).