Step Four - The Short Row Heel
If you haven't untwisted your balls of yarn, do so now.
(Be careful to read all directions between photos.)
Slip the last stitch purlwise
Bring the working yarn from the back around to the front right under this stitch.
Slip this stich back to the left needle without twisting it.
Turn your work and move the working yarn between the needles.
Beginning with the next stitch on the left needle, purl across to the last stitch.
Slip the next stitch purlwise and wrap the yarn around this slipped stitch to the other side (the knit side, or front side of the sock)
Slip this stitch back to the left needle.
Turn your work and move the yarn between the needles.
Knit across to the 2nd to last stitch. (Remember you are only working on one heel right now on Sock A. Sock B is in waiting!)
Just as before, slip the stitch purlwise, wrap the yarn around it, and slip it back to the left needle.
Turn your work, and move the yarn between the needles.
Purl across to the 2nd to the last stich, wrap and turn just as you've wrapped and turned the previous stitches.
Continue working back and forth to the next unwrapped stitch, wrapping them and turning until you have 7 wrapped stitches on both sides (8 unwrapped stitches in the middle), ending with a PURL row.