"Then meetings of Frohnmeyer, Volkonski, and the rest were held here in secret sometimes?" echoed Hamilton in surprise.

"On certain occasions, when it is absolutely necessary that I should meet them," answered Sir Henry. "They stay at the Station Hotel in Perth, coming over to Auchterarder by the last train at night and leaving by the first train in the morning from Crieff Junction. They never approach the house, for fear that servants or one or other of the guests may recognise them, but go separately along the glen and up the path to the ruins. When we thus meet, our voices can be heard through the crack in the roof of the chamber in the courtyard above. On such occasions I take good care that Stewart and his men are sent on a false alarm of poachers to another part of the estate, while I can find my way there myself with my stick," he laughed. "The Baron, I believe, acts on the same principle at his chateau in Hungary."

"Well," declared Hamilton, "so well has the Baron kept the secret that I have never had any suspicion until this moment. By Jove! the invention of the Whispers was certainly a clever mode of preserving the secret, for nobody cares deliberately to court disaster and death, especially among a superstitious populace like the villagers here and the Hungarian peasantry."

Both Gabrielle and her lover expressed their astonishment, the latter remarking how cleverly the weird legend of the Whispers invented by Sir Henry had been made to fit historical fact.

* * * * *

When the eight o'clock train from Stirling stopped at Auchterarder Station that evening, a tall, well-dressed man alighted, and inquired his way to the police-station. The porter knew by his accent that he was a Londoner, but did not dream that he was "a gentleman from Scotland Yard."

Half an hour later, after a chat with the rural inspector, the pair went along to the cell behind the small village police-station in order that the stranger should read over to the prisoner the warrant he had brought with him from London—the application of the French police for the arrest and extradition of Felix Gerlach, alias Krail, alias Benoist, for the wilful murder of Edna Mary Bryant in the Forest of Pontarme, near Chantilly.

The inspector had related to the London detective the dramatic scene up at Glencardine that day, and the officer of the Criminal Investigation Department walked along to the cell much interested to see what manner of man was this, who was even more bold and ingenious in his criminal methods than many with whom his profession brought him daily into contact. He had hoped that he himself would have the credit of making the arrest, but found that the man wanted had already been apprehended on the charge of burglary at Glencardine.

The inspector unlocked the door and threw it open, but next instant the startling truth became plain.

Felix Krail lay dead upon the flagstones. He had taken his life by poison—probably the same poison he had placed in the wine at the fatal picnic—rather than face his accuser and bear his just punishment.

* * * * *

Many months have now passed. A good deal has occurred since that never-to-be-forgotten day, but it is all quickly related.

James Flockart, unmasked as he has been, never dared to return. The last heard of him was six months ago, in Honduras, where for the first time in his life he had been compelled to work for his living, and had, three weeks after landing, succumbed to fever.

At Sir Henry's urgent request, his wife came back to Glencardine a week after the tragic end of Gerlach, and was compelled to make full confession how, under the man's sinister influence, both she and Flockart had been forced to act. To her husband she proved beyond all doubt that she had been in complete ignorance of the truth concerning the affair in the Pontarme Forest until long afterwards. She had at first believed Gabrielle guilty of the deed, but when she learned the truth and saw how deeply she had been implicated it was impossible for her then to withdraw.

With a whole-hearted generosity seldom found in men, Sir Henry, after long reflection and a desperate struggle with himself, forgave her, and now has the satisfaction of knowing that she prefers quiet, healthful Glencardine to the social gaieties of Park Street, Paris, or San Remo, while she and Gabrielle have lately become devoted to each other.

The secret syndicate, with Sir Henry Heyburn at its head, still operates, for no word of its existence has leaked out to either financial circles or to the public, while the Whispers of Glencardine are still believed in and dreaded by the whole countryside across the Ochils.

Edgar Hamilton, though compelled to return to the Baron, whose right hand he is, often travels to Glencardine with confidential messages, and documents for signature, and is, of course, an ever-welcome guest.

The unpretentious house of Lenard et Morellet of Paris now and then effects deals so enormous that financial circles are staggered, and the world stands amazed. The true facts of who is actually behind that apparently unimportant firm are, however, still rigorously and ingeniously concealed.

Who would ever dream that that quiet, grey-faced man with the sightless eyes, living far away up in Scotland, passing his hours of darkness with his old bronze seals or his knitting, was the brain which directed their marvellously successful operations!

The Laird of Connachan died quite suddenly about seven months ago, and Walter Murie succeeded to the noble estate. Gabrielle—sweet, almost child-like in her simple tastes and delightful charm, and more devoted to Walter than ever—is now little Lady Murie, having been married in Edinburgh a month ago.

At the moment that I pen these final lines the pair are spending a blissful honeymoon at the great old chateau of Hetzendorf, high up above the broad-flowing Danube, the Baron having kindly vacated the place and put it at their disposal for the summer. Happy in each other's love and mutual trust, they spend the long blissful days in company, wandering often hand in hand, for when Walter looks into those wonderful eyes of hers he sees mirrored there a perfect and abiding affection such as is indeed given few men to possess.

Together they have in secret explored the ruins of the ancient stronghold, and, by directions given them by the Baron, have found there a stone chamber by no means dissimilar to that at Glencardine.

Meanwhile, Sir Henry Heyburn, impatient for his beloved daughter to be again near him and to assist him, passes his weary hours with his favourite hobby; his wife, full of sympathy, bearing him company. From her, however, he still withholds one secret, and one only—the Secret of the House of Whispers.

THE END