His distress was so unmistakable that her quick woman's wit divined the true cause. They had now sauntered some distance away from the part of the tower that might be marked "dangerous," so she grasped Jimmy's ponderous arm, and whispered with a delightful smile--

"You saw me make signs to that Frenchman, didn't you?"

"Well--er--I--er----"

"Oh, yes, I understand. Of course you were surprised. But don't jump now, or say anything; he is my brother!"

She need not have warned Daubeney as to any remarks he might feel inclined to make, for her announcement again rendered him speechless.

"It is a mystery," she whispered, "a deep secret. We will tell you all about it at lunch."

CHAPTER XVIII

TALBOT'S ADVENTURES

Although Miss Talbot spoke so confidently of revelations to accompany the expected meal, it is idle to pretend that any of the three people who were cognizant of Talbot's mysterious appearance on the island betrayed undue haste to return to the waiting lunch.

Sublimely unconscious of the excitement raging in their b.r.e.a.s.t.s, Sir Hubert Fitzjames could not understand why they each and all answered him in such a flurried manner when he dilated upon the beauties of the bay.

Finally he turned to Edith with an air of apprehension.

"I fear," he said, "that your expedition of last night has upset you.

Have you a headache?"

Then she could contain her news no longer. Drawing him close to the rampart, and bending down so as to apparently take a deep interest in the laughing excursionists beneath, she murmured--

"Listen to me carefully, uncle. Don't look around. Have you noticed the party of Turks and a Frenchman grouped together in the opposite corner?"

"Yes," he said. "You do not mean to tell me that they are the people whom Mr. Brett met this morning at the station?"

"Yes, unquestionably they are. Had your attention not been otherwise taken up you must have recognized them from their description. But the most marvellous thing remains. You know the little turret close to which they are standing?"

"Yes."

"Well, in the staircase leading to the top, and leaning out through a window, trying to hear what they are saying, is Jack!"

"What an extraordinary thing," said the major-general, who was really very annoyed that such a meeting should have taken place under his very nose and its significance remain hidden from him.

"Can we do anything?" he added.

"Nothing save to remain here a little longer and be most careful not to appear to have the least knowledge of their ident.i.ty. I have told you lest we might chance to meet Jack face to face, and you should be taken by surprise if you recognized him."

"Is he in disguise, then?" gasped her uncle.

"Yes, in a sense. Mr. Talbot has put him into a sort of French working-man's holiday suit. He looks so odd, but it is evident that neither Gros Jean nor the Turks have the least suspicion of his presence. It was very clever of Jack to get into that turret without alarming them."

They were joined by Daubeney and Fairholme, and Edith knew by a single glance at the expressive expanse of the former's face that should he be again brought into close proximity to the Turks and her brother it was quite possible the quick-witted Gros Jean might detect the look of interested amazement which must inevitably appear upon his honest British countenance.

"Bobby," she said at once, "I want you and Mr. Daubeney to go down to the launch and await us there. We will join you in a few minutes."

"Certainly," was the reply, for Fairholme knew that some motive lay behind the request. "You cannot do much by remaining here, can you, so I suppose you will not be long?"

"No; uncle and I will survey the view until it is firmly fixed in our minds. After that it is full steam ahead for the Hotel du Louvre."

The two young men disappeared down the stairs leading to the courtyard.

On their way they encountered a number of holiday makers, climbing to the top of the tower. In they came, twenty or more of them, and promptly spread themselves around the walls, the Ma.r.s.eillais amongst them indicating to their country cousins points of interest in the city and along the coast.

At this moment, too, the siren of the small pleasure steamer at the quay announced she was about to make her hourly trip back to the town.

Whereupon Gros Jean and the Turks, having apparently ended their consultation, crossed the roof and disappeared down the staircase.

Instantly Jack Talbot strolled after them, but no sooner had the bulky form of Gros Jean--who was the last of his party--vanished than Talbot ran towards his uncle and sister, and said rapidly--

"Dubois and the girl have gone to Palermo. Gros Jean and the Turks have been in communication with the Sultan, and there is a movement on foot to buy back the diamonds. That is all that I can tell you now, but let Mr. Brett know. When I have seen these chaps safely home, I will at once come to the hotel."

Then he, too, vanished.

Edith felt a thrill of elation that her good judgment should have led her to remain sufficiently long on the tower to glean such important information.

When Brett heard the news it seemed to annoy him.

"I feared as much," he said. "I had not much faith in the patriotism of the Young Turks. I wonder how much the Sultan has offered. It must be a severe wrench for him to dip his hands into his money-bags, and Dubois will certainly demand a handsome figure before he disgorges his booty.

However, we must possess our souls in peace until Talbot comes here and tells us all what he has learnt. At this moment I cannot help marvelling at the strange coincidence which should have led the Turks and yourself to select the Chateau d'If for a morning stroll. I fully expected that Gros Jean would be in bed. He must have received some startling intelligence to keep him away from his rest after a long journey.

Meanwhile, I have not been idle."

Everyone awaited with interest his next words, for Brett seldom made such a remark without having something out of the common to communicate.

"I telephoned to Paris," he explained, "to tell the Prefecture that Gros Jean and the Turks had arrived at Ma.r.s.eilles. The police were surprised, and perhaps a little sore, that they had not discovered the fact for themselves, but when I soothed them down they informed me that 'Le Ver'--the diminutive scoundrel whom we rescued from the Rue Barbette--had faithfully kept his appointment with me at the Grand Hotel yesterday.

"It seems that he was much upset when he learnt that I had left. He went straight to the commissary to inform him that, contrary to expectations, the Turks were acting in complete accord with mademoiselle's father.

This naturally puzzled the commissary a good deal, and the affair became still stranger when an attache from the Turkish Emba.s.sy called a little later and urged the police to do all in their power to discover the whereabouts of Hussein-ul-Mulk, as he was particularly anxious to have a friendly talk with him.

"Close on the heels of the Turk came a confidential messenger from the British Emba.s.sy, requesting the latest details, and, when questioned by the commissary, this man admitted that he had in the first instance called to see me at the Grand Hotel.

"In a word, Miss Talbot, I had suspected the existence of the negotiations, which your brother's smart piece of work this morning has confirmed."

Whilst they were talking Fairholme took Daubeney on one side, and with Brett's permission gave him a detailed account of the whole affair.

The Honourable James Daubeney was delighted to be mixed up in this international imbroglio. He told the earl that the _Blue-Bell_ was at his disposal at any moment of the day or night she might be required.

Indeed, he forthwith excused himself on the ground that certain little formalities were requisite before he could clear the harbour, and he must hurry off to attend to these immediately.

"I tell you what," he added, with his hand on the door, "I will come back and dine with you, if I may, at half-past seven, because I shall not sleep to-night until I hear how things are going on. But I promise you, if I meet a single Turk between here and the harbour, I will cross over to the other side of the street."

No one quite knew what he meant by this portentous guarantee, but it was evident that Daubeney, if nothing else, was a man of action, and his yacht might become very useful.

He had hardly quitted the hotel when a waiter announced that a _jeune Francais_ wished to see Mr. Brett.