Going into the hall she groped her way to Berta's room. She gently pushed in the door, which opened noiselessly, and an indistinct glimmer, like the last gleam of twilight, met her eyes. It was the light of the night-lamp burning softly in its porcelain vase.

Her first glance was at the bed, which, in the indistinct light, presented to her eyes only a shapeless object; but in a moment more she saw that the bed was empty.

She thought of taking the lamp that burned in the corner of the room to light her way and going to the pavilion, but at this moment she felt a breath of cold damp air blowing softly on her face.

She turned her eyes in the direction from which the breeze had come, and observed that the window was wide open and that outside all was profound darkness.

And filled with indescribable amazement, unwilling to believe the evidence of her eyes, she saw what appeared to be a human figure standing motionless in front of the window, its hands clasped and its forehead resting against the window-frame.

A cold perspiration, like that of death, broke out over her; she would have shuddered, but she could not; she attempted to cry out, but her voice died away in her throat; she attempted to fly, but her feet, fastened to the ground, refused to carry her.

With her eyes starting from their sockets, her mouth wide open, and terror depicted on her countenance, she stood as if petrified, without the strength to keep erect or the will to fall.

And in truth she had some reason to be terrified.

Before her stood Berta, leaning motionless against the window, drinking in with rapt attention the notes which at that moment came in a torrent from the piano.

It was not Berta, then, who was breaking the silence of the night with that mysterious music.