And this man had been in the prime of his manhood, good-looking, clever, brilliant, the lover of a beautiful actress. Hardly the kind of person to hide his light under a bushel, unless there was some strong motive for concealment.

What could that motive be? Heathcote wondered, as he brooded over the imperfect story of Marie Prévol and her niece. Was this Georges a swindler, who had come by his wealth in a criminal manner, and dared not show himself in the light of day? Was he one of the many tricksters and schemers of Paris, the birds of prey who live upon carrion, and who know themselves the scorn of their fellow-men? or had he a wife from whose jealous eye he was obliged to hide his devotion to Marie Prévol? Heathcote believed that there must have been some guilty reason for the life which shrank from the light of day.

He had been in Paris a fortnight, and he began to ask himself how long this investigation to which he had pledged himself was likely to last. At the beginning his progress had seemed rapid—triumphant almost. Starting from utter ignorance of the name and position of the dead girl, he had arrived in a few days at an exact knowledge of her name, surroundings, and past history. Yet he was constrained to confess to himself that, armed with all these facts, he was not one whit nearer to finding the man who had murdered her. Given this history of Léonie Lemarque's childhood and youth, it was still possible that Bothwell Grahame had thrown her out of the railway-carriage.

The man who took her in a hansom from Charing Cross to Paddington might have left her at the latter station. She might have gone alone upon her way towards Penzance, to encounter a villain on the road, and that villain might have been Bothwell Grahame. The thing was within the limits of possibility; though in Heathcote's present mood it seemed to him altogether unlikely. Yet firmly to establish the fact of Bothwell's innocence, he must find the man who was guilty.

It seemed to him that the man who met Léonie Lemarque at the station, who was known to have conducted her to another station, had in a measure condemned himself by his silence. If he had not been guiltily concerned in the girl's death, he would assuredly have replied to the advertisement. He would have been apprised by that advertisement that some evil had befallen Léonie Lemarque, and he would have been prompt to come forward and tell all he knew of the girl who had been sent to him for aid, a friendless orphan, a stranger in a strange land.

It seemed clear to Heathcote that Georges, the murderer, was still living, still in dread of the gallows; and that the girl who went to meet the friend of the murderer had fallen into a trap. The papers she carried were doubtless of a compromising character; the girl herself was the sole witness of the crime, the only living being who could recognise the murderer. Papers and witness had disappeared together.

Heathcote was fond of Paris. It was not irksome to him to stay there even in the dead season. He had the theatres for his evening amusement; he had two or three friends who had not fled to the mountain or the sea, and in whose drawing-rooms he was welcome. He had the National Library in the Rue Richelieu for his club; and he had the ever-varying life of the Boulevard for his recreation. Time therefore did not hang heavily on his hands; and he knew that while he watched and waited in Paris, Joseph Distin would not be idle in London. Every clue, were it the slightest, would be patiently followed by that expert investigator.

In his saunterings in the Rue de Rivoli and on the Boulevards Mr. Heathcote had hunted assiduously for a photograph of Marie Prévol; but so fleeting is the fame of beauty, which leaves nothing behind it save a tender memory, that for some time he had failed utterly in his quest. Her name was hardly remembered by the people who sold photographs. And yet twelve or thirteen years ago the portrait of Marie Prévol was in every shop-window. It had been sold by thousands, had adorned every album in Paris and Brussels, and had been hung over many a bachelor's mantelpiece, worshipped by half the beardless boys in France and Belgium.

At last Heathcote lighted upon an elderly shopman, who was a little more intelligent and had a much better memory than the men he had encountered hitherto. The man perfectly remembered Marie Prévol and her photographs.

"We had a photograph of her by Nadar," he said—"a portrait that was the rage. It was soon after her first appearance at the Porte Saint-Martin, and it was the costume in which she made her début. She was the Genius of Evil, in a black satin bodice and a black tulle skirt starred with gold. The close-fitting black bodice set off her graceful figure, and her superb shoulders, and her hair, which was positively magnificent, fell down her back in a horse's tail. It was like a stream of molten gold. I saw her in that character half a dozen times. All Paris rushed to see her, though she was never much of an actress. Her beauty made her famous all over Europe. We used to send her photographs to St. Petersburg. But there is a fashion in these things; and I daresay almost every one of those photographs has found its way to the rubbish-heap. If you call to-morrow I may be able to supply you with what you want; but I shall have to hunt over a good deal of our old stock to get at it."