Sew with piece 9 on the back. I find that it is easier to see what you are doing when most of the seams are on the top.
Again, come up at the bottom of the V
Missing the folds
And coming out in the corner on top
Take a back stitch in the same place
Pass the needle through the top seam, from the right side of the seam.
Missing the fold in the middle.
And through the left side.
Go down in the corner,
Again missing the folds.
Down into the V.
Coming up to the top one stitch away from the corner.
Take a back stitch in exactly the same place and load up your needle. Sew on to the end.Press towards the number 9 piece.

Crispy