ten o'clock in
the morning
`` Well ? '' `` Well , I discovered yesterday -- I heard them talking about it in the porter 's box -- that the 15th of April plays an important part in the life of Louise d'Ernemont . '' `` Nonsense ! '' `` Contrary to her usual habits , this woman who works every day of her life , who keeps her two rooms tidy , who cooks the lunch which her little girl eats when she comes home from the parish school ... this woman , on the 15th of April , goes out with the child at ten o'clock in the morning and does not return until nightfall . And this has happened for years and in all weathers . You must admit that there is something queer about this date which I find on an old picture , which is inscribed on another , similar picture and which controls the annual movements of the descendant of d'Ernemont the farmer-general . '' `` Yes , it 's curious ... you 're quite right , '' said Lupin , slowly .