Spindle's end - Robin McKinley

An exceptional retelling of The Sleeping Beauty which takes the reader into a magical world filled with modern characters, encountering adventure, love and loss. Rosie is very, very ordinary. No-one, not even an extremely powerful and evil fairy who is out for the princess's blood, would give Rosie a second glance. But then, even Rosie doesn't know the secret of her own birth...and she cannot be hidden forever as her twenty-first birthday approaches. The curse placed on her at her christening will hunt her down through the years, gathering strength, and at some point a princess must become a queen, even if she would rather just stay ordinary-