Em adores her funny, glamorous dad - who cares if he's not her real father? He's wonderful to her, and to her little brother Maxie and sister Vita. True to form at Christmas, Dad gives them fantastic presents, including a real emerald ring for his little Princess Em. Unfortunately he's got another surprise in store - he's leaving them. Will Dad's well-meaning but chaotic attempts to keep seeing Em and the other children help the family come to terms with this new crisis? Or would they be better off with a clean break - just like Em's arm?

JACQUELINE WILSON is an extremely well-known and hugely popular author who served as Children's Laureate from 2005-7. She has been awarded a number of prestigious awards, including the British Children's Book of the Year and the Guardian Children's Fiction Award (for The Illustrated Mum), the Smarties Prize and the Children's Book Award (for Double Act, for which she was also highly commended for the Carnegie Medal). In 2002 Jacqueline was given an OBE for services to literacy in schools and in 2008 she was appointed a Dame. She was the author most borrowed from British libraries in the last decade.'A brilliant writer of wit and subtlety' THE TIMES'She should be prescribed for all cases of reading reluctance' INDEPENDENT ON SUNDAY'Has a rare gift for writing lightly and amusingly about emotional issues' BOOKSELLER