Goldberry

MISTY MOUNTAINS JUMP
Here is additional info to make a shawl between the Small size and the Large size. I call it "The Misty Mountains Jump" because it allows you to jump from a row between Row 41 and Row 55 directly to the Final Edging Row. The row before the Final Edging Row should contain a multiple of 12 + 1 sts, so here are the additional st increases you would need to do to force a row to end with a multiple of 12 + 1 sts:

Row 41 has 343 sts, so add 6 more for 349 (29X12 + 1)
Row 42 has 349 sts so is already good to go (29X12+ 1)
Row 43 has 355 sts, so add 6 more for 361 (30X12 +1)
Row 44 has 361 sts so is already good to go (30X12 + 1)
Row 45 has 367 sts so add 6 more for 373 sts (31X12 + 1)
Row 46 has 373 sts so is already good to go (31X12 +1)
Row 47 has 379 sts so add 6 more for 385 (32X12 + 1)
Row 48 has 385 sts so is already good to go (32X12 + 1)
Row 49 has 391 sts so add 6 more for 397 (33X12 + 1)
Row 50 has 395 sts so add 2 more for 397 (33X12 + 1)