Where is Charles?

I couldn't find Charles. William and I had been reading upstairs, and it was time to get ready for the first day of soccer. The house was quiet, so I figured Charles had fallen asleep somewhere. I checked the den floor where I have often found him. I checked the living room where he had been playing. He was not in his room when I went to get his socks. I was about to search William's room when I spied two little feet sticking out from under the dining room table.