`` i can tell subtle differences between colors , even though they may look a little blurry , '' tess replies . `` and you were so very good at it . he walks to the edge of the porch and places his hands on the rail . he was warm and smelled faintly of beer and dried sweat . she patted his shoulder and got up to leave . but he could n't leave here yet , not without being sure . i do n't think you need it now , anyway . '' 