Ways to use it
The long holidays
It ends with a book, which is more than most rainy afternoons manage.
Something to make rather than something to watch, on the fourth wet afternoon in a row.
It is a project with an end
A story can be three chapters or thirty. Either way there is a cover, a title page and a thing that exists at the end of it that did not exist at the start.
Two children, one story
It works best with somebody arguing. Take turns deciding what happens, or let one of them do the deciding while the other reads it back.
Print it at the end
On Premium a finished story prints as a proper book, with a title page and chapter openings, which is a better holiday souvenir than a photograph of a beach.