First time children's author Julia Golding is the winner of this year's Ottakar Children's Book Prize with her novel The Diamond of Drury Lane.
Children's Laureate Jacqueline Wilson presented the award which is aimed at rewarding brand new children's authors.
Julia Golding's book, about a girl living in Georgian London, was chosen by a panel of booksellers and children.
On winning the prize Julia said: "I feel like the chorus girl suddenly chosen as leading lady!"
The Diamond of Drury Lane follows the tale of a young girl called Catherine (Cat) Royal who is found on the steps of the Theatre Royal, Drury Lane.
The theatre's owner, Mr Sheridan, takes her in and she goes on to live an exciting and colourful life backstage.
Julia Golding has had lots of exiting jobs including being a United Nations campaigner for Oxfam.
She is now a full-time writer and is planning more adventures for Cat Royal.