Sylvie has been a twelve-year-old princess for more than 80 years, ever since the novel she lives in was first printed. She's the heroine and her story is exciting - but the trouble is, it's always exciting in the same way. Sylvie loves her storybook friends and family, but she's getting bored with the story.
Then, when a new reader gazes down into Chapter One, Sylvie breaks an important rule for all storybook characters - she looks at the Reader. Worse still, she gets to know the Reader, a shy young girl called Claire.
When Claire falls asleep with the book open, Sylvie enters the girl's dreams and discovers a new and exciting world. A world where adventures are rewritten daily, and dark, unpredictable dangers lie in wait - and where Sylvie must achieve one great, good thing to save the lives of everyone she loves.