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 So in this book you have eleven princesses, all sisters and named after flowers alphabetically. The twelfth princess is born within the first chapter, but takes their mother - the queen - away. They immediately enter a period of mourning that is supposed to last a year. But the princesses have a love for dancing and they can't seem to quit. So when they find a magical passageway in their room that leads to a ballroom where they can dance with no judgment from their father, it seems to be fate. 
 But it's not. It turns out that the guardian of this magical dance floor - Mr. Keeper - has a task for the girls to complete in exchange for using his ballroom. He is in the ballroom because of a spell, and he needs them to find the magical object that is binding him there.