The Late Bloomer Mitten kit includes the yarn only.
You can purchase the pattern directly from Kristin Ledgett here.
Kit Includes:
1 skein Lichen and Lace Marsh Mohair (72% kid mohair 28% silk, 459 yards 50 grams)
2 skeins Lichen and Lace Rustic Heather Sport (100% Canadian Wool, 215 yards 56 grams)
The kit includes enough yarn to knit the largest size.