He pointed to the little vellum waste-basket beside the escritoire, in which lay a large crumpled mass of heavy paper.

“I also noticed that piece of discarded wrapping-paper stamped with the name of a well-known Fifth Avenue novelty shop; and this morning, on my way down-town, I dropped in at the shop and learned that they make a practice of tying up their bundles with purple twine. Therefore, I concluded that Skeel had taken the tweezers and the twine from this apartment during his visit here that eventful night. . . . Now, the question was: Why should he have spent his time tying strings to eyebrow-pluckers? I confess, with maidenly modesty, that I couldn’t find an answer. But this morning when you told of arresting Jessup, and emphasized the rebolting of the side door after Skeel’s departure, the fog lifted, the sun shone, the birds began to sing. I became suddenly mediumistic: I had a psychic seizure. The whole modus operandi came to me—as they say—in a flash. . . . I told you, Markham old thing, it would take spiritualism to solve this case.”

CHAPTER XXVI.
Reconstructing the Crime

(Monday, September 17; noon)

When Vance finished speaking, there was several minutes’ silence. Markham sat deep in his chair glaring into space. Heath, however, was watching Vance with a kind of grudging admiration. The corner-stone in the foundation of his case against Jessup had been knocked out, and the structure he had built was tottering precariously. Markham realized this, and the fact played havoc with his hopes.

“I wish your inspirations were more helpful,” he grumbled, turning his gaze upon Vance. “This latest revelation of yours puts us back almost to where we started from.”

“Oh, don’t be pessimistic. Let us face the future with a bright eye. . . . Want to hear my theory?—it’s fairly bulging with possibilities.” He arranged himself comfortably in his chair. “Skeel needed money—no doubt his silk shirts were running low—and after his unsuccessful attempt to extort it from the lady a week before her demise, he came here last Monday night. He had learned she would be out, and he intended to wait for her; for she had probably refused to receive him in the custom’ry social way. He knew the side door was bolted at night, and, as he didn’t want to be seen entering the apartment, he devised the little scheme of unbolting the door for himself under cover of a futile call at half past nine. The unbolting accomplished, he returned via the alleyway, and let himself into the apartment at some time before eleven. When the lady returned with an escort, he quickly hid in the clothes-closet, and remained there until the escort had departed. Then he came forth, and the lady, startled by his sudden appearance, screamed. But, on recognizing him, she told Spotswoode, who was now hammering at the door, that it was all a mistake. So Spotswoode ran along and played poker. A financial discussion between Skeel and the lady—probably a highly acrimonious tiff—ensued. In the midst of it the telephone rang, and Skeel snatched off the receiver and said the Canary was out. The tiff was resumed; but presently another suitor appeared on the scene. Whether he rang the bell or let himself in with a key I can’t say—probably the latter, for the phone operator was unaware of his visit. Skeel hid himself a second time in the closet, and luckily took the precaution of locking himself in. Also, he quite naturally put his eye to the keyhole to see who the second intruder was.”

Vance pointed to the closet door.

“The keyhole, you will observe, is on a line with the davenport; and as Skeel peered out into the room he saw a sight that froze his blood. The new arrival—in the midst, perhaps, of some endearing sentence—seized the lady by the throat and proceeded to throttle her. . . . Imagine Skeel’s emotions, my dear Markham. There he was, crouching in a dark closet, and a few feet from him stood a murderer in the act of strangling a lady! Pauvre Antoine! I don’t wonder he was petrified and speechless. He saw what he imagined to be maniacal fury in the strangler’s eyes; and the strangler must have been a fairly powerful creature, whereas Skeel was slender and almost undersized. . . . No, merci. Skeel wasn’t having any. He lay doggo. And I can’t say that I blame the beggar, what?”

He made a gesture of interrogation.