A mansion, in the upper part of the city, had been in the course of erection during the previous year. It was a castellated villa in the very suburbs, standing upon the gentle swell of a hill, and commanding a fine view both of the city, and the beautiful scenery that lies upon the North and East Rivers.

A few ancient trees, rooted when New York was almost a distant city, stood around this dwelling, sheltering with their old and leafy branches the glowing flowers and rare shrubbery with which grounds of considerable extent were crowded.

This dwelling, so graceful in its architecture, so fairy-like in its grounds, had risen as if by magic among those old trees. Lavish was the cost bestowed upon it; rich and faultless was the furniture that arrived from day to day after the masons and artists had completed their work. Statues of Parian marble, rich bronzes, antique carvings in wood, and the most sumptuous upholstery were arranged by the architect who had superintended the building, and who acted under directions from some person abroad.

When all was arranged, drawing-rooms, library, ladies' boudoir and sleeping chambers, that might have sheltered the repose of an Eastern princess, the house was closed. Those who passed it could now and then catch a glimpse of rich fresco paintings, upon the walls, through a half-fastened shutter; and through the hot-house windows might be seen a little world of exotic plants, dropping their rich blossoms to waste; while the walls beyond were laden with fruit ripening in the artificial atmosphere. Grapes and nectarines fell from bough and vine, untasted, or only to be gathered stealthily by the old man who had temporary charge of the grounds.

Thus everything remained close and silent, like some enchanted palace of fairy land, week after week, till the autumn came on. Since the architect left it, no person save the old gardener, had ever been observed to enter even the delicate iron railing that encompassed the grounds. True, the neighbors, to whom this dwelling had become an object of great interest, were heard to assert that at a time, early in the summer, lights had been observed one stormy night, in the second-story, and even high up in the principal tower. Some even persisted that before it was quite dark, a close carriage had been driven up to the door and away again, leaving two or three persons, who certainly entered the house. After that, carriage wheels had more than once been heard above the storm, rolling to and fro, as if people were coming and going all night.

The next morning, when all the neighborhood was alive with curiosity, this dwelling stood as before—stately and silent, amid the old forest trees. The shutters were closed; the gate locked. Not a trace could be found proving that any human being had entered the premises. So the whole story was generally set down as an Irish fiction, though the servant girl, who originated it, persisted stoutly that she had not only seen lights and heard the wheels, but had caught glimpses of a cashmere shawl within the door; and of a little barefooted girl, with a basket on her arm, coming out half an hour after, and alone. But there stood the closed and silent house—and there was the talkative old gardener in contradiction of this marvellous tale. Besides, carriages were always going up and down the avenue upon which the dwelling stood, and out of this the girl had probably found material for her fiction. Certain it was, that from this time till October no being was seen to enter the silent palace.

Then, in the first golden flush of autumn, the house was flung open. Carriages came to and fro almost every hour. Saddle horses, light phætons, and an equipage yet more stately, drove in and out of the stables. The windows, with all their wealth of gorgeously tinted glass, were open to the hazy atmosphere; grooms hung around the stables; footmen glided over the tesselated marble of the entrance-hall.

Conspicuous among the rest, was one tall, awkwardly-shaped man, who came and went apparently at pleasure. His duties seemed difficult to define, even by the curious neighbors. Sometimes he drove the carriage, but never unless the lady of the mansion rode in it. Sometimes he opened the door. Again he might be seen in the conservatory, grouping flowers with the taste and delicacy of a professed artist; or in the hot-houses, gathering fruit and arranging it in rich masses for the table. It was marvellous to see the beautiful effect produced by those great, awkward hands. The very japonicas and red roses seemed to have become more glowing and delicate beneath his touch. But after the first week this man almost wholly disappeared from the dwelling. Sometimes he might be seen stealing gently in at nightfall, or very early in the morning; but his active superintendence was over; he seemed to be no longer an inmate, but one who came to the place occasionally to inquire after old friends.

But the mistress of all this splendor—the beautiful woman who sometimes came smilingly forth to enter her carriage, who sauntered now and then into the conservatory, blooming as the flowers that surrounded her, mature in her loveliness as the fruit that hung upon the walls bathed in the golden sunshine—who was this woman, with her unparalleled attractions, her almost fabulous wealth? The world asked this question without an answer, for the Mrs. Gordon of Saratoga, and the Ada Leicester of our story, satisfied no curiosity regarding her personal history. She visited no one who did not first seek her companionship, and thus deprived society of its right to question her.