The Riddle of Mathilde Martin

 
Mathilde had made up her mind to go see Madame Odile again. Madame was bound to have the answer to the riddle. She had the answer to everything. But of course such a visit would require payment, a debt of pain au chocolat for services rendered. So as soon as school ended, Mathilde ran for the corner bakery, hoping against hope the baker would not have sold out of the pastries.

And as luck would have it, he had not.