Mr Laffond has invented something special! He and his daughter, Anne, have returned from the US to live in France. Two men want to steal his secret formula, but both Anne and her friend, Yves, help M

Two youngsters win a competition, and their prize is to write an article for a French magazine. They make a trip to Crest to write about the castle, but they get caught in the middle of criminal acti

Résumé : un frere et une soeur, en vacances dans un château en Bretagne, partent sur les traces du passé... Quels secrets vont-ils découvrir ?