Hmmm...I wonder what's back here

I looked away for a second and he was off. He managed to fit himself back behind the fireplace. It may look like there is plenty of space for a little one. Surprisingly though, there isn't space for him and his mother trying to get him out. I had to turn his head sideways so it would fit between the brick and the fireplace. What a little monkey!! Judging by the little miniature horse back there, it wasn't cleaned before we moved in, and I haven't touched it either...yuck.