Getting started.

Help- I’m knitting Anne Hanson’s estonia shawl from Interweave Fall 2016. The cast on row has 10 stitches. The the first row of chart starts with 28 st. Directions say “10 stitches to 28” How does that work? I thought I was doing well with my lace knitting but — nope— can’t seem to start this on.

I’ll see if I can search out my issue of the magazine. Meanwhile, what are the next couple of lines after the cast on and “10 stitches to 28”?

Thank you thank you-- This shawl is worked side to side…
6 sts, PM, CO 1 st pm, CO 3 sts – 10 sts: 3 right border sts, 1 main panel st, 6 left edge sts. Work rows 1-36 of chart A–28 sts: 3 right border stitches, 19 main panel sts, 6 left edge sts. Work Rows 1-12 of Chart B 11 times–94 sts: 3 right border sts, 85 main panel sts, 6 left edge sts. Work Rows 1-12 of Chart C -->etc

Looks like the cast on is as given then you work chart A. At the end of 36rows of chart A you’ll have 19 main panel sts. The chart likely has about one increase per RS row? These Ravelry project show the beginning of the shawl in one photo.
http://www.ravelry.com/projects/cindycarr1/edmonia-shawl
http://www.ravelry.com/projects/Bocce/edmonia-shawl
The second project looks like it has 19sts in the center panel so it’s just before going on to chart B.