I made these a few months back, and ingrid is right, you are working on the instep. You will pick up stitches on either side of these 13 stitches, once you have knitted an inch or so of instep.
If a little dreaming is dangerous, then the cure is not to dream less, but to dream more... to dream all the time! - Proust
currently recruiting for the war i am waging on time, there will be many casualties, but we will be victorious