A retelling of the tale of twelve princesses who wear out their shoes dancing every night, and of Galen, a former soldier now working in the king's gardens, who follows them in hopes of breaking the curse.
When Petunia, youngest of the dancing princesses, is ambushed by bandits in wolf masks on her way to visit an elderly neighbor, the line between enemies and friends becomes blurred as she and her sisters get a chance to end their family's curse once and for all.
Sybella locates her fellow assassin and novitiate of the convent of Saint Mortain, only to discover that Genevieve has made a lethal mistake, and there are far-reaching consequences for loved ones entanged in French court intrigues.