The man mumbled good night, made his former awkward salute, and marched into the hall. He did not glance at the woman, nor she at him. Derrick’s eyes narrowed a little.

“Please come here, Perkins, when you’ve locked up.”

The door closed, and he looked instinctively at the portrait as though to ask whether in all this he had done the right thing. But Millicent was uncommunicative to-night. Quite deliberately Derrick was rebuilding the personnel of Beech Lodge as it existed two years before, peopling it with the same faces, making it echo with the same voices. Its one-time master was no doubt still here, and now there remained only the other Millicents. If the circle could but be closed, and old contacts reëstablished, then perhaps the way would become clear. He was deliberating this when Perkins’s return ended the reverie.

“I’d like, if possible, to feel sure, Perkins, that from all you know of Martin I’ve done the right thing in engaging him. This unexpected return is bound to affect you in some way under the circumstances, and—”

He stopped abruptly. She was staring at him with so searching an expression that he knew that to-night he had drawn nearer the essential mystery of Beech Lodge. Yet it was not his action but his words that produced this remarkable effect. He was aware that it was not in the garden, where Millicent had lovingly tended his roses, or anywhere but in this room that the spirit of the murdered man seemed to cry aloud for vengeance—and for peace.

“It was meant that Martin should come back and you should engage him,” said Perkins dully. “I do not know more than that. You could not help it. You were called, and Martin, too.”

He perceived that there was nothing absurd in this. She spoke simply, as though reciting facts established beyond all question. Her look told him that at this moment she could go no further. Suddenly something reached him out of space. The room was alive again.

“How long had Mr. Millicent been dead when you found him?”

“I told you that they sent for me,” she answered gravely, “but I do not know how soon they sent. When the doctor came he thought that it had happened more than an hour before.”

“And you found him at this desk?”