Deciphering directions

[Lin]

Can anybody help me figure out these instructions?
I'm knitting a baby sweater. There were 11 stitches on a holder on each side of the cardigan...here are the instructions that I don't get!

With RS facing, pick up the 11 sts from the Right Front stitch holder (do not knit them) reattach yarn (what does this mean?) and pick up and knit 10 sts up the neck edge, 16 sts across the back neck, 10 sts down the left neck edge and 11 sts from the left front st holder: 58 sts. Knit one row. ****Next row: work 2 buttonholes above the previous buttonholes in the same manner as before.

The first part of these instructions have me puzzled. I placed the 11 sts on the needle and then I picked up the 10 sts, 16 sts and the 10 sts. Then I took the 11 off the holder. But how do I knit the stitches that came off the stitch holder?? There is no working yarn there!!! Can anyone make any sense from this question that I'm asking??? LOL