'Rosa and the Magic Moonstone' by Darcey Bussell, the 9th in the series of Magic Ballerina books. Rosa is confident about passing her first ballet exam, but right in the middle of her test she is whisked away to Enchantia. The King's magic moonstone has broken and all of the ballets are muddled up! Will Rosa be able to put things right? Approx age 5-8 years. Other titles from the series available separately.