"They must take you. They must! You are my only hope, the only link that will be left between me and Virginia Beverly. Listen! We are talking frankly to each other, you and I. We never thought to be such friends—but we are friends, and must trust each other to succeed. You often speak, half-jestingly, of being poor. I have money—I don't say enough; who has enough? But I am not a poor man. Watch Virginia for me; watch Sir Roger Broom. Let me know where this yacht is taking you, whom she carries, all that happens on board of her. Advise me, from what you see of passing events; and for all these services, worth an inestimable sum to me, I will give you what I can afford—say, a thousand pounds. You shall have half down the day you start, and the other half the day that you return."
"You are generous; and—I will be loyal," said Kate. "It will not be my fault, I promise you, if the yacht sails without me. Now I must go. We must have been talking here for more than an hour, for Virginia's carriage, which she lent me, has just driven up to the door. Whenever there is a new development of this mystery, which interests us both, you shall know it. I wish I could take you up to Cap Martin with me, if you are ready to go that way, but perhaps it would be wiser not—especially as the victoria isn't my own."
Kate Gardiner had not been in the hotel an hour when a box was brought to her door by the Marchese Loria's valet. Inside was the diamond serpent. She told herself that she had done a very good afternoon's work.
Soon every one knew that the American heiress and beauty, Miss Virginia Beverly, had bought, for twenty thousand pounds, the famous steam yacht which the mad Spanish Prince d'Almidares had used as a despatch boat at the time of the American war with Spain. For some time it had been for sale, lying in harbour at Nice; but it had been too costly a toy; the cannon with which it was armed were worth only the price of old iron to most buyers of yachts. They were equally useless to Miss Beverly and her party, as she and George Trent and Roger Broom impressed upon all who asked questions; but, then, what was the use in wasting time enough to dismantle the yacht, as she was wanted immediately, and the cannon were too cleverly concealed to injure the smart appearance of the little craft?
It was given out that the Bella Cuba would touch at Greece, go on to Egypt, and perhaps visit Algiers and Lisbon, steaming at last up the Thames to Tilbury. Virginia Beverly ostentatiously bought thin summer clothing, saying that it would be summer weather on the sea before she bade good-bye to the water. Still, Virginia announced that she did not wish to be bound down to a definite programme, and Kate Gardiner had to be satisfied with a prospect of vagueness if she intended to be of the party.
Not for a single moment had she abandoned that intention. Even if she had not stood to earn a thousand pounds she would have moved heaven and earth to go, for more and more, as the days of preparation went on, her curiosity and excitement increased.
Roger Broom, it was clear, had been intensely annoyed when he was informed that Lady Gardiner had so far overcome her fear of the sea, as to wish to be a passenger on the Bella Cuba. He had said little, but his face was expressive, and Kate was of opinion that he would have said a great deal more, had not some strong motive restrained him. Perhaps, she thought, this motive was fear of rousing her suspicions if he too emphatically advocated her stopping behind. But—suspicions of what? That was the question she often asked herself, and could never answer.
She had asked it of Loria also, when they met—as secretly as if the bond between them had been a forbidden love. But if the truth about the yachting trip had been told, even he had no solution ready for the puzzle.
At last the yacht, which had been re-painted, was ready, the captain and crew of picked men, all Englishmen, were engaged, and the Bella Cuba steamed into the harbour at Mentone, exactly one month from the date (as Kate happened to remember) of the eventful ride into the Valley of the Shadow.