What a great pattern! Could you write directly to the blogger and ask her? I looked through my scarf books and it's not in any of these (at least it will give you a start, knowing where NOT to look
!:
Scarf Style, Pam Allen
Vogue on the Go, Scarves book 1
Vogue on the Go, Scarves book 2
The Best of Knitters Magazine, Shawls and Scarves
Knit Ponchos, Wraps and Scarves, Davis
Simple 1-2-3, Knitting Scarves