Write a book together : the 12 European stars have disappeared

Here are some details about the project: history: 12 children from 12 different European countries have discovered a star of the European flag. each participant will write the chapter for his country and illustrate. It should appear in each chapter of the important points of each country. The final chapter will be written in common. So we need 12 participating countries for this project. the end of the project in June 2013.