The hand drew back, but, as it vanished, Bailey moved his head silently until his face emerged from behind the tree. The woman was leaning back, her head resting against the trunk only a few inches away from his face. The great stones of the tiara flashed in his very eyes. Over her shoulder, he could even see the gorgeous pendant, rising and falling on her bosom with ever-changing fires; and both her raised hands were a mass of glitter and sparkle, only the deeper and richer for the subdued light.

His heart throbbed with palpable blows that drummed aloud in his ears. The sweat trickled clammily down his face, and he clenched his teeth to keep them from chattering. An agony of horror—of deadly fear—was creeping over him—a terror of the dreadful impulse that was stealing away his reason and his will.

The silence was profound. The woman’s soft breathing, the creak of her bodice, were plainly—grossly—audible; and he checked his own breath until he seemed on the verge of suffocation.

Of a sudden through the night air was borne faintly the dreamy music of a waltz. The dance had begun. The distant sound but deepened the sense of solitude in this deserted spot.

Bailey listened intently. He yearned to escape from the invisible force that seemed to be clutching at his wrists, and dragging him forward inexorably to his doom.

He gazed down at the woman with a horrid fascination. He struggled to draw back out of sight—and struggled in vain.

Then, at last, with a horrible, stealthy deliberation, a clammy, shaking hand crept forward towards the seat. Without a sound it grasped the wool, and noiselessly, slowly drew back. Again it stole forth. The fingers twined snakily around the phial, lifted it from the seat and carried it back into the shadow.

After a few seconds it reappeared and softly replaced the bottle—now half empty. There was a brief pause. The measured cadences of the waltz stole softly through the quiet night and seemed to keep time with the woman’s breathing. Other sound there was none. The place was wrapped in the silence of the grave.

Suddenly, from the hiding-place, Bailey leaned forward over the back of the seat. The pad of cotton-wool was in his hand.

The woman was now leaning back as if dozing, and her hands rested in her lap. There was a swift movement. The pad was pressed against her face and her head dragged back against the chest of the invisible assailant. A smothered gasp burst from her hidden lips as her hands flew up to clutch at the murderous arm; and then came a frightful struggle, made even more frightful by the gay and costly trappings of the writhing victim. And still there was hardly a sound; only muffled gasps, the rustle of silk, the creaking of the seat, the clink of the falling bottle and, afar off, with dreadful irony, the dreamy murmur of the waltz.