But before they had traversed a quarter of the length of the Via dei Serragli, the clatter of the carriage wheels and the other noises of the street threw the girl into a delirium, and they returned hastily to Bellosguardo. The delirium passed away and they made another attempt. This time they were to cross Florence in the middle of the night, and a special train was to take them northward. But the paroxysm came on again, and with greater violence. Before they reached the bottom of the Bellosguardo hill Dorothy threw up her arms like a wild creature; the nurse could scarcely hold her. This time high fever followed; the girl, now in bed, lay with scarlet cheeks and glassy eyes, knowing nobody. Dr. Hotham conquered the fever. Then she was as she had been before, save that the weakness was increased. With the exception of Dr. Hotham, there was now no one in Florence whom they knew. Nora Sebright remained at St. Martin's Orphan House out in the country; but she knew nothing of events in town. One day Dr. Hotham, having been called to the orphan house to see a child, spoke to Nora of the puzzling illness of Mrs. Mackenzie; he knew that the Sebrights were among the acquaintances of these American ladies. Nora hurried to town, and, although it was evening, drove up to Belmonte without delay. There were now two nurses at the villa. But Nora was the best nurse; and, after seeing Dorothy for a moment, she begged the mother and aunt to allow her to remain and assist. "You are extremely kind, Miss Sebright. But I do not think you ought to give yourself so much trouble," said Mrs. North. "Dorothy will soon be stronger; the fever, as you see, has entirely disappeared, and in a few days we shall go to Switzerland." But Nora followed Mrs. Tracy into the next room. "Dear Mrs. Tracy, do let me stay. I am such a good nurse--you can't think. And I am so fond of Dorothy. And I really think she ought to be amused, if possible. Not that I am very amusing; but at least it makes one more." There was no lamp in this room, but, all the same, Charlotte Tracy seemed to read an expression in the face she could not see. "What has Dr. Hotham said to you?" she asked. "Indeed, nothing; he never talks. It is only that Dorothy has always been so well; she was well all winter, you know. Even now (for the fever was only the effort of the journey) there seems to be nothing one can take hold of. And so the question came up, as it always does in such a case, could she have anything weighing upon her mind--weighing too much, I mean? But I am sure," continued Nora, her voice calm as usual (but her face, in the darkness, quivering for an instant), "that we need apprehend no danger of that sort; Dorothy's mind is perfectly healthy. And she has been from the very first so brave, you know--so wonderfully brave."