pattern can be found here
Errata: Chart C, written row 1 should read:
K2, PM, YO, K1, [YO, Sl1-K2tog-PSSO, YO, K3], repeat [to] 25 times, YO, Sl1-K2tog-PSSO, YO, K1, YO, PM, center stitches, then repeat whole section as mirror image from marker to marker on the other side of the shawl and end with k2 border stitches.