Ghost Town Ghost Picture

Shelley Bassett of Arizona sent us this ghost town picture and the following it a ghost?

"This picture was taken October 1st, 2005 at Stein's ghost town in New Mexico. This lady was giving us a walk-through tour of this ghost town that she bought back in 1988. Before going into this cabin, I took a picture as she was talking. If you look behind her in the window, there looks to be a face. Is it a face?"