"The fact is," said Mrs. Fitzgerald, "Mr. Green has told us so much about her, that we are extremely anxious to be introduced to her. He says she hasn't half seen Rome, and he wishes she could join our party. I wish we could persuade you to leave her with us. I can assure you Mr. Fitzgerald is a most agreeable and gallant protector to ladies. And then it is such a pity, when she is so musical, that she should go without hearing this new prima donna."

"Thank you," rejoined Mrs. Delano; "but we have become so much attached to each other's society, that I don't think either of us could be happy separated. Since she cannot hear this musical wonder, I shall not increase her regrets by repeating your enthusiastic account of what she has missed."

"If you had been present at her début, you wouldn't wonder at my enthusiasm," replied the little lady. "Mr. Fitzgerald is getting over the fever a little now, and undertakes to criticise. He says she overacted her part; that she 'tore a passion to tatters,' and all that. But I never saw him so excited as he was then. I think she noticed it; for she fixed her glorious dark eyes directly upon our box while she was singing several of her most effective passages."

"My dear," interrupted her husband, "you are so opera-mad, that you are forgetting the object of your call."

"True," replied she. "We wanted to inquire whether you were certainly going so soon, and whether any one had engaged these rooms. We took a great fancy to them. What a desirable situation! So sunny! Such a fine view of Monte Pincio and the Pope's gardens!"

"They were not engaged last evening," answered Mrs. Delano.

"Then you will secure them immediately, won't you, dear?" said the lady, appealing to her spouse.

With wishes that the voyage might prove safe and pleasant, they departed. Mrs. Delano lingered a moment at the window, looking out upon St. Peter's and the Etruscan Hills beyond, thinking the while how strangely the skeins of human destiny sometimes become entangled with each other. Yet she was unconscious of half the entanglement.

CHAPTER XXI.

The engagement of the Señorita Rosita Campaneo was for four weeks, during which Mr. King called frequently and attended the opera constantly. Every personal interview, and every vision of her on the stage, deepened the impression she made upon him when they first met. It gratified him to see that, among the shower of bouquets she was constantly receiving, his was the one she usually carried; nor was she unobservant that he always wore a fresh rose. But she was unconscious of his continual guardianship, and he was careful that she should remain so. Every night that she went to the opera and returned from it, he assumed a dress like the driver's, and sat with him on the outside of the carriage,—a fact known only to Madame and the Signor, who were glad enough to have a friend at hand in case Mr. Fitzgerald should attempt any rash enterprise. Policemen were secretly employed to keep the cantatrice in sight, whenever she went abroad for air or recreation. When she made excursions out of the city in company with her adopted parents, Mr. King was always privately informed of it, and rode in the same direction; at a sufficient distance, however, not to be visible to her, or to excite gossiping remarks by appearing to others to be her follower. Sometimes he asked himself: "What would my dear prudential mother say, to see me leaving my business to agents and clerks, while I devote my life to the service of an opera-singer?—an opera-singer, too, who has twice been on the verge of being sold as a slave, and who has been the victim of a sham marriage!" But though such queries jostled against conventional ideas received from education, they were always followed by the thought: "My dear mother has gone to a sphere of wider vision, whence she can look down upon the merely external distinctions of this deceptive world. Rosabella must be seen as a pure, good soul, in eyes that see as the angels do; and as the defenceless daughter of my father's friend, it is my duty to protect her." So he removed from his more eligible lodgings in the Piazza di Spagna, and took rooms in the Corso, nearly opposite to hers, where day by day he continued his invisible guardianship.