I wondered about that too. At first I thought it was because there were only 12 people in a group, but I just checked the original email and there were 13 in each group. So there is a block missing in the group two packet. Dunno, maybe Bebe will clear it up for us?
I love those card trick blocks together that's going to make an awesome quilt. Yesterday I put noses and little "mouths" on the kitties, what fun!