How to enter
1. There are two age groups to enter: 5-8 years and 9-12 years. Imagine that you are writing a postcard to a friend or relative from the most amazing place you have been. Or invent a place. Be sure to tell us everything that is special about it and see how well you can conjure it up in a few well-chosen words. You don't have to restrict yourself to sending in your entry on a postcard but the maximum number of words we're after is 300 for the 5-8 age group and 500 for the 9-12s.
2. Parents or guardians, write or copy your child's entry into the 'Your postcard entry' field below along with your details and click ‘Submit’. Closing date: 30/09/11.
How to enter
The winner from each age group will have their story illustrated by Quentin Blake, before a final winner is chosen to go on a Giant Roald Dahl Day in New York. Our winner and three guests will be flown to New York and stay four nights at the Hotel Plaza Athénée, a family-friendly boutique hotel on the Upper East Side and close to Central Park. The Giant Roald Dahl Day will be packed with treats: see New York as James did with a helicopter trip over Manhattan; take a trip to the top of the Empire State Building; visit Toys R Us in Times Square, spend a £200 voucher and take a ride on the giant Ferris wheel; and meet Lucy Dahl, Roald's youngest daughter, for tea. The three runners-up from each group will receive a set of Roald Dahl's hardback fiction library (published by Puffin Books and Random House Children's Books), plus a family pass to the Roald Dahl Museum and Story Centre in Great Missenden for a year.
Quentin Blake Roald Dahl's principal illustrator.
Michael Rosen Former children's laureate and writer of the upcoming biography of Roald Dahl.
Lauren Child Author and illustrator of the best selling Charlie and Lola books.
Kerry Smith Editor of High Life magazine.