Yarn Requirements:
Helix by La Bien Aimee held double: 75% Falkland Merino, 25% Gotland wool: 710 yds per 100 g skein.
Yarn A: (main color) Stone: approx. 170 g/ 1207 yards held double. Approx 710 yards if using a single yarn.
Yarn B: Undergrowth: approx 155 g/1100 yards held double. Approx 550 yards if using a single yarn.
Yarn C: Quartz Fume: approx 65 g/462 yds held double. Approx 231 yds if using a single yarn.
Yarn D: Madeleine: approx 50 g/355 yds held double. Approx 178 yds if using a single yarn.

GAUGE
26 sts and 40 rows (20 garter ridges) per 10 cm/4 in over Garter rows and stitch pattern.

NEEDLES
Size 5 US circular in lengths 60 in. Two size 5 dp needles for i-cord bind off.

NOTIONS
One stitch marker to keep track of right side of work, 2 markers for the center spine and several markers to keep track of stitch count if desired. One size 13 dp needle to use with smaller dp needle to make small tassles at end of i-cord ties. One yarn needle.

NOTES:
This is a traditional Sontag Shawl that begins with an i-cord tab cast on. Increases are worked on both edges on every row and at the center spine on every right side row. Once the trellis stitch pattern begins, increases are at the edges and center spine on every row of the garter section to make up for the lack of center spine increases in the trellis stitch sections.
I used a lace weight yarn and held two strands of yarn together throughout. In most of the shawl, I worked with 2 strands of the same color. In the center of each garter stripe, I worked several rows using two strands of different colors held together.
If you like, you can hide your ends in the i-cord as you go. I found that doing this made my i-cord too tight on one side so I ended up leaving them and weaving in later. For easy reference, I put the i-cord technique at the beginning of the pattern so you can reference it if you forget. Be sure to keep your tension loose while knitting the i-cord edging so the i-cord will not end up too tight. If you know the trellis stitch, you will notice that what is usually considered the wrong side of the stitch pattern is used as the right side in this pattern. However, if you prefer the opposite side, go for it!
The shawl is finished with i-cord ties and a tiny tassel for tying the shawl in the back if you want to get all Little Womenly. If you will never wear your shawl that way you can certainly omit the cords and maybe just make a tiny tassel to finish.