Here are four of Hans Christian Andersen's best-loved short stories, specially adapted for young children and read by some of Britain's most well-known actors. In 'The Emperor's New Clothes', read by Sir Derek Jacobi, an emperor is promised a special suit of clothes by a pair of tailors. In 'The Little Mermaid', read by Anne-Marie Duff, a beautiful mermaid falls in love with a prince. In 'The Fir Tree', read by David Tennant, a little fir tree is desperate to grow up and be like the other trees in the forest. And in 'The Wild Swans', read by Penelope Wilton, a princess must rescue her brothers from a spell cast by a wicked queen.