He was a nerd and she was her sisters twin, changing places w/her.
always a great read.
Joy Williams pulls a man back from the curb before he can step in front of an oncoming car, then realizes he operates a little differently from others. Not only does he think and act strangely, he recognizes that she is not her twin sister Grace. No one knows Joy is covering for Grace at her antique store, while Grace attends an estate sale. So, how does Caleb know she isn't Grace?