He hesitated a moment, and then said:

“Well, good-night to you”—and the other man, speaking over his shoulder, said in an easy, cultivated voice without any accent at all:

“Pleasant dreams, Miss Renata.”

Jane’s “Good-night” was just audible and no more, but obviously it satisfied the two men, for the door was shut, the key turned and withdrawn, and presently the hall light went out, and the darkness was absolute and unrelieved, except where the midnight sky showed just less black than the interior of the room.

After what seemed a long, long time, Jane undressed and got to bed. It was strange to grope for and find Renata’s neatly folded nightdress.

Presently she lay down, and presently she slept. Time ceased; the day was over.

She woke suddenly a few hours later. It was still dark. She came broad awake at once, and sat up in bed as if some one had called to her. Her mind was full of one horrifying thought.

The plank—what had Arnold done with the plank?

Impossible that he should have helped Renata down the fire-escape and carried the plank as well, and somehow Jane did not see Arnold troubling to come back for it.

One thing was certain; if Arnold had left the plank in its compromising position, it must be removed before daylight.