“And, though it sounds like a cock and bull story,” Harbison went on, “suppose Wally thinks to himself, if I could only tie Kim up somewhere till I can get my play finished and accepted by a manager, it will be my salvation! Now, of course, if he kidnapped Kim it had to be done before the wedding, so—”

“It’s far-fetched,” said Whiting thoughtfully, “but I’ll say it’s the first thing I’ve heard put forth by way of a motive. You know finding a motive is a necessary step to be taken before finding the perpetrator of this thing.”

“I know the motive,” Elsie’s voice announced, as she entered in time to hear Whiting’s closing words. “I’ve found the perpetrator,—and I did have proof,—but she’s destroyed it.”

Elsie’s stern gaze at Henrietta Webb decidedly discomfited that cool, calm personality, and for the first time Miss Webb’s poise seemed about to desert her.

Ignoring the others, Elsie addressed herself to Hanley.

“I found a real clue, yesterday morning,” she said, “when I went up to look around Mr. Webb’s room. On the floor, in front of the little sofa were several white marks,—”

“How absurd!” cried Henrietta; “I beg of you don’t discuss the shortcomings of a careless housemaid!”

“White marks,” Elsie went on, as if uninterrupted, “that were made by the rubbing on the carpet of a woman’s white shoes. Shoes, I mean, that had been whitened with some of those chalk preparations that most women use,—or their maids use for them.”

A side glance at Henrietta’s face showed Elsie that it was as white as the chalk in question, but she went on: “I know that those marks were made by Miss Webb’s shoes; I know that it was at her request that the maid carefully removed the marks from the green carpet; I know she gave the maid orders to say nothing about the matter; and I know she has destroyed or concealed those shoes!”

Henrietta’s face became like a stone. Impassive, unreadable, its expression showed neither embarrassment nor fear. Only in her eyes was there a sign of perturbation. Her glance at Elsie was defiant, and a little threatening.