"Good-night, sir."

Robert Cairn went out into Half-Moon Street. The night was perfect, and the cloudless sky lavishly gemmed with stars. He walked on heedlessly, scarce noting in which direction. An awful conviction was with him, growing stronger each moment, that some mysterious menace, some danger unclassifiable, threatened Myra Duquesne. What did he suspect? He could give it no name. How should he act? He had no idea.

Sir Elwin Groves, whom he had seen that evening, had hinted broadly at mental trouble as the solution of Sir Michael Ferrara's peculiar symptoms. Although Sir Michael had had certain transactions with his solicitor during the early morning, he had apparently forgotten all about the matter, according to the celebrated physician.

"Between ourselves, Cairn," Sir Elwin had confided, "I believe he altered his will."

The inquiry of a taxi driver interrupted Cairn's meditations. He entered the vehicle, giving Sir Michael Ferrara's address.

His thoughts persistently turned to Myra Duquesne, who at that moment would be lying listening for the slightest sound from the sick-room; who would be fighting down fear, that she might do her duty to her guardian—fear of the waving phantom hands. The cab sped through the almost empty streets, and at last, rounding a corner, rolled up the tree-lined avenue, past three or four houses lighted only by the glitter of the moon, and came to a stop before that of Sir Michael Ferrara.

Lights shone from the many windows. The front door was open, and light streamed out into the porch.

"My God!" cried Cairn, leaping from the cab. "My God! what has happened?"

A thousand fears, a thousand reproaches, flooded his brain with frenzy. He went racing up to the steps and almost threw himself upon the man who stood half-dressed in the doorway.

"Felton, Felton!" he whispered hoarsely. "What has happened? Who—"