Made up the pattern as I went along. Starting with hood, leave a 17 stitch beginning tail to weave in to seal the hood. Hood rectangle is 31 stitches across x 15 down. Knit, purl knit purl across, making columns. Bind off creating neck seam, then, push through 2 loops in first Bind off loop, 1 through next, 2, 1, 2, 1 across all 31 loops. Then just like hood, Knit, purl, knit, purl across all stitches. repeat for 4 rows, Bind off again creating shoulder seam. Again, just like last bind off, 2 loops through first stitch, one through next, 2, 1, 2, 1 across all Bind off stitches. Repeat the Knit, purl, Knit, Purl as with the rest of the cape until finishing off all 36 yards of loop yarn, then Bind off for final time. leave 3 loops to weave in the end, clip off remaining loops and finish. Going back to the hood, Fold the top right and left corners together, and loop through the beginning tail stitch and all following, Bind off per normal when done.

Added a button at throat on right side, and a loop on left side for closure.