Crochet secure
1 On the WS, look at the shoulders, where the slipped stitches have been used to pickup the cardigan front sleeves and back sts:
2 With a crochet, insert your hook inside the first slipped stitch:
3 Wrap yarn around the hook (I use a contrasted yarn for demonstration purpose):
4 Then insert the hook insed the next slipped stitch:
5 Wrap the yarn around and bring it back:
6 Slip this stitch inside the first:
7 Repeat steps 4 to 6 until you have work all slipped stitches:
Break yarn and pull through remaining stitch.