After a month of enjoying all sorts of “trial runs” with errands, festivals, trips, and projects, brother and sister decide that they really want to bring in something new to their Day of Rest — a new tradition that they haven’t experienced yet. After the family spends some time “trying on” all the natural transitions of October, they realize that the month holds a special quality — something “in between” — which gives them a magical clue to exactly the type of thing they decide to add.