Entwined by Heather Dixon

Entwined by Heather Dixon is Azalea and her eleven sisters.  After the death of their mother, the girls are forced into one year of Mourning, during which time they must stay in the palace, wear only black, and cease dancing (their true passion). Their father, the King, goes off to war and leaves the girls in the care of servants and tutors.  The palace was enchanted hundreds of years prior by an evil king, who was aid to have disappeared.  While most things in the palace have been "un-magicked", there are still a few items remaining, including a secret passageway and room within the girls' hearth.  Azalea finds if she rubs her mother's old silver handkerchief on the faint symbol carved into the wall of the hearth, the passage opens and the girls are able to dance the night away in a beautiful enchanted ballroom.  They are overseen by the Keeper, who continues to invite the girls each night.  Unfortunately, he wants something in return and forces a promise out of Azalea that she must keep.  This puts not only her sisters, but her father the King, their palace, and their way of life in danger.

I loved this book!  It's a version of the Twelve Dancing Princesses fairy tale.  I especially liked getting to know the characters of all of the sisters, meeting their would-be suitors, and seeing the relationships between the girls and their father evolve.  I would recommend this book to anyone who likes fantasy and fairy tales.