The Seven search for a missing schoolgirl in this exciting story, read by Sarah Greene. A girl runs away from home - and it's up to the Seven to find her! Jack's little sister Susie is up to her usual tricks - but she can't put the Seven off the trail of clues. Can they track down Elizabeth, and discover who stole the money from her school? Enid Blyton is one of the best-known and best-loved authors of all time. In polls, she is consistently voted a children's favourite and over a million of her books are borrowed from libraries each year. She wrote over 600 children's books, including the bestselling Famous Five and Secret Seven series.