"Shall I tell Mrs. Carlyon a certain secret, or shall I not?" he thought. "Would she keep it to herself? No, no; better be on the safe side," he presently decided: "and the time is hardly ripe to tell it to anyone. What would Squire Denison say if it were whispered to him?"

On this very evening, while these ladies were on their way to London, a strange thing happened at Heron Dyke.

It was about eight o'clock. Fitch the saddler had come up from Nullington about some little matter of business, and Aaron Frost sent one of the housemaids to fetch him a certain whip that was hanging up in the hall. As Martha left the room with her candle she met her fellow-servant, Ann, and the latter turned to accompany her. The girls never cared to go about the big house singly after dark. They went along chattering merrily, and thinking of anything rather than unpleasant subjects. Martha was repeating a ludicrous story just told in the kitchen by the saddler, and could hardly tell it for laughing.

As in many old mansions, round three sides of the entrance-hall there ran an oaken gallery, some twenty feet above the ground, from which various doors gave access to different parts of the house. This gallery was reached from the hall by a broad and shallow flight of stairs.

"How cold this place always strikes one," exclaimed Ann, as they entered the hall.

"It would want many a dozen of candles to light it up properly," remarked Martha.

Having found the whip, they turned to retrace their steps, when Martha, happening to glance up at the gallery, gave utterance to a low cry, and grasped her companion by the arm. Ann's eyes involuntarily followed the same direction, and a similar cry of intense terror burst from her lips.

They saw the face of the missing girl--the face of Katherine Keen, gazing down upon them from the gallery. The face was very pale; white as that of the dead. The figure was leaning over the balustrade of the gallery, and its eyes gazed down into theirs with a sad, fixed, weary look. It seemed to be clothed in something dark, pulled partly over its head and grasped at the throat by the white, slender fingers. For fully half a minute, the two girls stood and stared up at the figure in sheer incapability, and the figure looked sadly down upon them. At length it moved--it turned--it took a step forward, and the servants, both of them, distinctly heard the sound of a faint far-away sigh. Could it be possible that the figure meant to come downstairs? The spell that had held the girls was broken; with low smothered cries of terror they turned and fled, clinging to each other.

How the one dropped the whip and the other the candle, and how they at length gained the kitchen, and burst into it with their terror-stricken faces and their unhappy tale, they never knew. Fitch the saddler gazed in open-eyed amazement, as well he might; the deaf and stolid cook looked in from the cooking-kitchen--in which congenial place she preferred to sit, surrounded by her saucepans.

The girls sobbed forth all the dismal story. Their mistress, Mrs. Stone, flung her apron over her head as she listened, and sank back in her chair in dismay equal to theirs. But old Aaron was so indignant, so scandalised, at what he called their senseless folly, that he lost his breath in a rage, and gave each of them a month's warning on the spot.