PANEL A
With A, ch 40.
Row 1 (RS): 2 dc in 4th ch from hook, *sk next 2 ch, sc in next ch, ch 5, sk next 5 ch, sc in next ch, sk next 2 ch, shell in next ch; repeat from * one more time, sk next 2 ch, sc in next ch, ch 5, sk next 5 ch, sc in next ch, sk next 2 ch, 3 dc in last ch, turn—6 sc, 2 half shells, and 2 shells.
Row 2: Ch 1, sc in first st, ch 5, *sc in next ch-5 sp, ch 5, sc in center st of next shell, ch 5; repeat from * one more time, sc in next ch-5 sp, ch 5, sc in top of beginning ch, turn—7 sc, and 6 ch-5 sps.
Row 3: Ch 5 (counts as dc, ch 2), *sc in next ch-5 sp, shell in next sc, sc in next ch-5 sp, ch 5; repeat from * one more time, sc in next ch-5 sp, shell in next sc, sc in next ch-5 sp, ch 2, dc in last st, turn—2 dc, 6 sc, and 3 shells.
Row 4: Ch 1, sc in first st, ch 5, *sc in center st of next shell, ch 5, sc in next ch-5 sp, ch 5; repeat from * one more time, sc in center of next shell, ch 5, sc in 3rd ch of turning ch, turn—7 sc, and 6 ch-5 sps.
Row 5: Ch 3 (counts as dc), 2 dc in first st, sc in next ch-5 sp, *ch 5, sc in next ch-5 sp, shell in next sc, sc in next ch-5 sp; repeat from * one more time, ch 5, sc in next ch-5 sp, 3 dc in last st, turn.
Rows 6–53: Repeat Rows 2–5 twelve more times. Fasten off.
PANEL B
With B, ch 40.
Row 1: With B, repeat Row 1 of panel A.
Rows 2–77: Repeat Rows 2–5 of panel A 19 times. Fasten off.
PANEL C
With C, ch 40.
Row 1: With C, repeat Row 1 of panel A.
Rows 2 - 113: Repeat Rows 2–5 of panel A 28 times.
Rows 114–115: Repeat Rows 2–3 once more. Fasten off.
FINISHING
Blocking
Wet all panels, pat and roll in towel to remove excess water. Gently tug to open stitch pattern. Place on flat surface to dry, easing panel to measurements.
Panel A Edging
Round 1: With RS facing, join A with sc in end of Row 1; working in ends of rows across long side edge, *ch 3, sc in end of next row; repeat from * across to last row, ch 3; working into sts of last row, sc in first st, [ch 3, sc in next sc, ch 3, sc in next ch-5 sp, ch 3, sc in next sc, ch 3, sc in center st of next shell] 2 times, ch 3, sc in next sc, ch 3, sc in next ch-5 sp, ch 3, sc in next sc, ch 3, sc in last st; working in ends of rows across other long side edge, **ch 3, sc in end of next row; repeat from ** across to first row; fold piece in half, and join Row 1 to last row as follows: working in sts of last row and in the free loops of foundation ch, ch 1, sl st in first st of last row, ch 1, sc in free loop of first st of Row 1, [ch 1, sl st in next ch-3 sp of last row, ch 1, sc in free loop of next sc of Row 1, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in next ch-5 sp of foundation ch, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in free loop of next sc of Row 1, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in free loop of next shell of Row 1] 2 times, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in free loop of next sc of Row 1, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in next ch-5 sp, ch 1, sl st in next ch-3 sp of last row, ch 1, sc in free loop of next sc of Row 1, ch 1, sl st in last ch-3 sp of last row, ch 1, sc in free loop of last st of Row 1, ch 1, sl st in last st of last row; join round with sl st in first sc.
Round 2: Working around top edge,(Sl st, ch 1, sc) in next ch-3 sp, ch 1, *sc in next ch-3 sp, ch 1; repeat from * around to seam, sc in seam, ch 1; join round with sl st in first sc. Fasten off.
Panel B Edging and Assembly
Round 1: With RS facing, join B with sc in end of Row 1; working in ends of rows across long side edge, *ch 3, sc in end of next row; repeat from * across to last row, ch 3; working into sts of last row, sc in first st, [ch 3, sc in next sc, ch 3, sc in next ch-5 sp, ch 3, sc in next sc, ch 3, sc in center st of next shell] 2 times, ch 3, sc in next sc, ch 3, sc in next ch-5 sp, ch 3, sc in next sc, ch 3, sc in last st; working in ends of rows across other long side edge, join panel B to lower edge of panel A as follows: matching up to ch-3 sps on Panel A, **sc in end of next row of panel B, ch 1, sl st in next ch-3 sp of panel A, ch 1, sc2tog over ends of next 2 rows of panel B, ch 1, sl st in next ch-3 sp of panel A, ch 1; repeat from * across to join long edges of panel A and panel B; join Row 1 and last row of panel B in same manner as for panel A; join round with sl st in first sc. Fasten off.
Panel C Edging and Assembly
Round 1: With RS facing, join C with sc in end of Row 1; working in ends of rows across long side edge, *ch 3, sc in end of next row; repeat from * across to last row, ch 3; working into sts of last row, sc in 3rd ch of turning ch , [ch 3, sc in next sc, ch 3, sc in center st of next shell, ch 3, sc in next sc, ch 3, sc in next ch-5 sp] 2 times, ch 3, sc in next sc, ch 3, sc in center st of next shell, ch 3, sc in next sc, ch 3, sc in last st; working in ends of rows across other long side edge, join panel C to free edge of panel B in same manner as joining panel B to panel A; join Row 1 and last row of panel C in same manner as for panel B; join round with sl st in first sc.
Round 2: Working around lower edge, (Sl st, ch 1, sc) in next ch-3 sp, ch 1, *sc2tog over next 2 ch-3 sps, ch 1; repeat from * around; join with sl st in first sc. Fasten off.
Using yarn needle, weave in all ends.