They Took Everything

When I walked into my house I looked around and seen that everything was gone. They even took my dog. But, there was this one thing laying in the middle of the floor. I went over to pick it up and it seemed like just a useless thing that maybe the robbers didn't want, but then I started realizing that it was a clue!
A clue that could help me to where the robbers and all my stuff could be.

picture from here