How to turn a corner

 Everyone who has done edgings to trim a hankie or shirt or whatever knows the corner is tricky. If you fall into the bad habit of adlibbing your pattern, you can find yourself in a pickle. I’m ready to turn the corner:

And this is my solution:

Incidentally, there’s a bit of a picot problem. Given the thread size, I think my solution will be to join to the ring with the thread going around the entire stitch. It’ll show, but that end will be in the book and I’ll just have to make the top fancy enough to distract. Ideas anyone?