The Trail of the Serpent by Mary Elizabeth Braddon

THE November night is darkest, foggiest, wettest, and windiest out on the open road that leads into Slopperton. A dreary road at the best of times, this Slopperton road, and dreariest of all in one spot about a mile and a half out of the town. Upon this spot stands a solitary house, known as the Black Mill. It was once the cottage of a miller, and the mill still stands, though in disuse.

The cottage had been altered and improved within the last few years, and made into a tolerable-sized house; a dreary, rambling, tumble-down place, it is true, but still with some pretension about it. It was occupied at this time by a widow lady, a Mrs. Marwood, once the owner of a large fortune, which had nearly all been squandered by the dissipation of her only son. This son had long left Slopperton. His mother had not heard of him for years. Some said he had gone abroad. She tried to hope this, but sometimes she mourned him as dead. She lived in modest style, with one old female servant, who had been with her since her marriage, and had been faithful through every change of fortune -- as these common and unlearned creatures, strange to say, sometimes are. It happened that at this very time Mrs. Marwood had just received the visit of a brother, who had returned from the East Indies with a large fortune. This brother, Mr. Montague Harding, had on his landing in England hastened to seek out his only sister, and the arrival of the wealthy nabob at the solitary house on the Slopperton road had been a nine-days' wonder for the good citizens of Slopperton. He brought with him only one servant, a half-caste; his visit was to be a short one, as he was about buying an estate in the south of England, on which he intended to reside with his widowed sister.