Once again my camera and I have not figured out how close I can get, but let me walk you through.
1. Come up at A, (I came up at the outside edge of the top fabric ). Go down at B, up at C, (1/8" or so inside the edge).
2. Go down at D, up at E, (outside edge).
3. Go down at F, up at G, (inside the edge).
4. Keep repeating 2. and 3. overlapping all of your cross-stitches. This is not a neat stitch, with the angles of the crosses all parallel. No, this is one of those dreaming stitches: your size 12 glides, you meditate, and Goddess takes care of all the angles.
It is doing a great job with all of those fraying edges too.
See ya tomorrow.