He fairly gasped for breath, and began to consider whether he should have time and opportunity to retreat unobserved through the opening in the fence. But this seemed to be a dangerous venture. From the spot where he stood, to the low bushes that grew along the enclosure, there was not a tree or shrub to conceal him. And if he should be discovered--in what a light would his nocturnal entrance into this carefully guarded precinct appear!

But before he could think of any other expedient, all time for reflection was over. The door of the bathing house was opened and a slender white figure, whose unbound hair fell over her arms and shoulders, appeared on the upper step of the little flight of stairs that led into the lake. She raised her head and looked up for a moment toward the night sky, which had become slightly overcast, then let the bathing cloak wrapped around her fall, and stooped to the water to wet her forehead and breast, the next instant she sprang down the steps, disappeared a few seconds and then, shaking her dripping locks, rose to the surface.

Her companion appeared at the doorway and called out to her, Edwin could not distinguish her words but the bather replied in a smothered voice. Then both were silent. The swimmer divided the water with long, steady strokes, at intervals raising her head and shoulders above the surface to shake back the thick hair from her brow. Her face looked dazzling white in the dim light of the setting moon, but the middle of the pond, to which she had swum, was too far from the trees on the meadow, for any one standing there to obtain a distinct view of her features. Thus the mysterious nixie swam up and down the lake ten or twelve times, in the profoundest silence. Her companion had retired to the little house, and none but she seemed to be breathing in the forest solitude. Not a zephyr stirred the surface of the pond, not a leaf fell from the trees; the croaking of the frog had ceased; only at intervals, when the swimmer made a quick turn the water rippled audibly and the rushes along the shore swayed to and fro.

At last she seemed to grow weary, and lying on her back, floated for a time in a circle, so that only a little of the pale face appeared above the water. While so doing she came so near the shore, that the watcher behind the boughs could see the delicate white outline of the profile relieved against the dark water, and distinctly perceived how the eyes, raised quietly toward the night heavens, flashed with a peculiar light.

He had not doubted from the first moment the identity of the swimmer, and his heart leaped into his throat, as he recognized again the never to be forgotten face.

Finally as if the lake wished to draw the motionless figure down into its depths, the head sank lower and lower in the noiseless waves, as if resting on the softest pillows. At last the water rushed and whirled around the sinking form; she hastily turned and with powerful strokes swam back toward the steps.

Her companion was waiting, holding in her hands a large white linen cloak, which she threw over the swimmer as she ascended the stairs. The next moment both disappeared within the little house. The door, it is true, remained half open, but in the darkness it was impossible to distinguish anything within.

Ten minutes more elapsed, then the two muffled figures again appeared and proceeding to the gate of the enclosure, opened it, relocked it, and then retired along the foot path by which they had come.

A long time passed ere the secret witness of this scene left the spot through the hole in the enclosure of the pond. As soon as he found himself alone, he had instantly plunged into the waves, but it scarcely calmed the strange tumult in his blood. As the rising night-wind now tossed his wet hair and blew against his breast, it seemed as if instead of cooling him, it was trying to fan the glimmering sparks in the ashes of his memory.

He started at the thought and involuntarily paused, as something warned him not to return to the castle. "No," he said to himself, "that would be too cowardly, too pitiful. Four years, four such happy years--could I again be the old defenceless fool? And all for a pair of white arms and two nixie eyes? What power would man have over his own soul if the forces of nature could never be successfully battled against? No, brave heart, we will not evade the struggle."