Let me recite the facts. In a space of eighteen months, five women disappeared, five women of different stations in life, all between twenty and thirty years of age and living in Paris or the Paris district.

I will give their names: Madame Ladoue, the wife of a doctor; Mlle. Ardant, the daughter of a banker; Mlle. Covereau, a washer-woman of Courbevoie; Mlle. Honorine Vernisset, a dressmaker; and Madame Grollinger, an artist. These five women disappeared without the possibility of discovering a single particular to explain why they had left their homes, why they did not return to them, who had enticed them away, and where and how they were detained.

Each of these women, a week after her departure, was found somewhere or other in the western outskirts of Paris; and each time it was a dead body that was found, the dead body of a woman who had been killed by a blow on the head from a hatchet. And each time, not far from the woman, who was firmly bound, her face covered with blood and her body emaciated by lack of food, the marks of carriage-wheels proved that the corpse had been driven to the spot.

The five murders were so much alike that there was only a single investigation, embracing all the five enquiries and, for that matter, leading to no result. A woman disappeared; a week later, to a day, her body was discovered; and that was all. The bonds that fastened her were similar in each case; so were the tracks left by the wheels; so were the blows of the hatchet, all of which were struck vertically at the top and right in the middle of the forehead.

The motive of the crime? The five women had been completely stripped of their jewels, purses and other objects of value. But the robberies might well have been attributed to marauders or any passersby, since the bodies were lying in deserted spots. Were the authorities to believe in the execution of a plan of revenge or of a plan intended to do away with the series of persons mutually connected, persons, for instance, likely to benefit by a future inheritance? Here again the same obscurity prevailed. Theories were built up, only to be demolished forthwith by an examination of the facts. Trails were followed and at once abandoned.

And suddenly there was a sensation. A woman engaged in sweeping the roads picked up on the pavement a little note-book which she brought to the local police-station. The leaves of this note-book were all blank, excepting one, on which was written a list of the murdered women, with their names set down in order of date and accompanied by three figures: Ladoue, 132; Vernisset, 118; and so on.

Certainly no importance would have been attached to these entries, which anybody might have written, since every one was acquainted with the sinister list. But, instead of five names, it included six! Yes, below the words "Grollinger, 128," there appeared "Williamson, 114." Did this indicate a sixth murder?

The obviously English origin of the name limited the field of the investigations, which did not in fact take long. It was ascertained that, a fortnight ago, a Miss Hermione Williamson, a governess in a family at Auteuil, had left her place to go back to England and that, since then, her sisters, though she had written to tell them that she was coming over, had heard no more of her.

A fresh enquiry was instituted. A postman found the body in the Meudon woods. Miss Williamson's skull was split down the middle.

I need not describe the public excitement at this stage nor the shudder of horror which passed through the crowd when it read this list, written without a doubt in the murderer's own hand. What could be more frightful than such a record, kept up to date like a careful tradesman's ledger: