Mrs de Fleurville and Mr de Ruges are going to Paris is order to become Sophie's official guardians. This will only be possible with Fedora Fichini's permission. She is still in Italy. Meanwhile at the castle, Paul and the captain are hunting down a thief disguised as a ghost. He scares the maids and steals vegetables from the garden. Sophie misses Mrs de Fleurville and Jean. Jean is bored in Paris and convinces his father to let him spend the rest of the summer in Fleurville. At the castle, Sophie protects Leon, the scared braggart, while Paul gets rid of a band of hooligans who are annoying a simpleton. Paul teaches Leon the principles of a fight. Jean and Sophie become closer, even in their dreams. Sometimes Sophie thinks that her stepmother is only a ghost.
Madame de Fleurville et monsieur de Rugès de rendent à Paris afin de devenir les tuteurs de Sophie, mais cela ne sera possible qu'avec l'autorisation de Fédora Fichini, toujours en Italie. Pendant ce temps, au Château, Paul et le commandant font la chasse à un voleur, déguisé en fantôme, qui effraie les femmes de chambre et chaparde des légumes dans le potager.
