Alsacian Scallop Lace Pattern

How to make Wrap
Purl 4, transfer them to a third needle, wrap the yarn around them 3 times clockwise, transfer them to the right needle again.

Pattern
Cast on a multiple of 21 sts, plus 3.
Row 1 (WS): Knit.
Row 2 (RS): Purl.
Row 3: Knit.
Row 4: K1, *yarn over, K21; rep from * to last 2 sts, K2.
Row 5: P2, *(P1, K3) 5 times, P2; rep from * to last st, P1.
Row 6: K1, *K1, yarn over, K1, (P3, K1) 5 times, yarn over; rep from * to last 2 sts, K2.
Row 7: P2, *P2, (K3, P1) 5 times, P2; rep from * to last st, P1.
Row 8: K1, *(K1, yarn over) twice, (SSK, P2) 5 times, (K1, yarn over) twice; rep from * to last 2 sts, K2.
Row 9: P2, *P4, (K2, P1) 5 times, P4; rep from * to last st, P1.
Row 10: K1, *(K1, yarn over) 4 times, (SSK, P1) 5 times, (K1, yarn over) 4 times; rep from * to last 2 sts, K2.
Row 11: P2, *P8, (K1, P1) 5 times, P8; rep from * to last st, P1.
Row 12: K1, *K8, (SSK) 5 times, K8; rep from * to last 2 sts, K2.
Row 13: P2, *P8, WRAP, P9; rep from * to last st, P1.
Row 14: Knit.
Rep Rows 1-14.