Round 15, should read 8 tr4tog (not 82!). The PDF has been corrected, but early versions might still contain the error.
Description from Tangled:
A pretty self-striping yarn with a long color repeat makes this beret shine. Based on the classic ripple design, with puffs for added texture, this pattern works up quickly in just one skein of sock yarn. It’s perfect for apple picking on crisp autumn days!