Confused by the pattern
I am trying to knit the following scarf but I am confused by the directions. It says cast on 25 stitches, row 1 and all ws rows are purl-which I am fine with but I can't figure out how I am supposed to work row 2: *K1,ssk (yo k1) 3 times, yo k2tog* repeat, end with k1. This should equal 25 stitches but I am obviously doing something wrong because I am getting everything but 25 stitches. To confuse things even further the designer has updated the pattern to make it better and that's throwing me off too. The pattern is Rabbit Tracks Lace, by spindyeknit.Any and all help would be appreciated.