Together they leaned over the balcony and scrutinized, with the intent gaze of a pair of detectives, the couple in the fourth row right. It may have been coincidence, or it may have been that species of visual hypnotism known to us all, which suddenly impelled Madame Rosalie's escort to turn in his seat. His eyes swept the house with a casual glance, then lifted to the balcony. Slowly they surveyed the arc of faces above the lights. The two men leaning toward him did not move. In another instant he had found them, and for a full minute he and Roger Kenwick held each other. And then the theater went black as the curtain rose on the last act.

Just before it was over Kenwick bade his companion a hurried farewell. "I'm going down and introduce myself to that fellow. I know I've seen him before somewhere, and he may be able to give me my clue. You don't mind if I break away? I want to catch him before he is lost in the crowd."

But this hope was thwarted. For hurrying down the aisle in that moment before the rush of exit, while the audience was finding its wraps, he found two seats in the fourth row empty. Slowly he walked back to the St. Germaine, his thoughts in a tumult. Why should they have wanted to leave before the end of as good a performance as that? Something must have happened. Could it be that they had wanted to escape him? At such long range it hadn't been possible for him to determine whether or not there was a flash of recognition in the other man's eyes, but his mysterious disappearance was haunting. On the following morning, before going to the "Clarion" office he took a car out to Fillmore Street.

At Madame Rosalie's shabby home a man in shirt sleeves opened the door. "Oh, she don't live here any more," he explained to the caller. "She moved a week ago. I'm gettin' the place ready for a new tenant."

"Do you know where she went?"

The man grinned. "Them mediums don't generally leave no forwardin' address. Their motto is 'Keep Movin'.' I will say, though, that the Rosalie woman was a perfect lady and paid her rent regular in advance."

Kenwick walked away, turning this latest development slowly in his mind, looking at it from every angle. At his office he worked mechanically, scarcely conscious of what he wrote. He was in two minds now about the Eastern trip. Perhaps it would be better to take Jarvis's advice and let things have their head a bit longer. And he was certain of some of his facts now. The face of the man in the fourth row had been like the flash of a torch at midnight. For most of the night he had been awake, going back over the painful trail of the past, fitting some of its previously incomprehensible details into their places. What a curious mosaic his life had been! What contrasts of light and shade! But as for going back to Mont-Mer——The idea made him shudder. No, that was one thing he would not do. It would be like courting the return of a nightmare.

At four o'clock he left the office and went to keep an appointment with Dr. Gregson Bennet in the Physicians' Building. Dr. Bennet belonged to that class of specialists who designate their business quarters in plural terms. His offices comprised a suite of four rooms. The sign on the door of the first one invited the caller to enter, unheralded. Complying with this injunction, Kenwick found himself in a well-lighted chamber containing a massive collection of light-green upholstery and an assortment of foreign-looking pictures artfully selected to convey the impression that their owner was on chummy terms with the capitals of Europe.

As the door closed automatically behind him, a white-uniformed figure appeared, like a perfectly trained cuckoo, from the adjoining room and announced in level tones, "The-doctor-will-see-you-in-just-a-minute." Kenwick accepted this assurance with the grave credulity that one fiction-maker accords another. He glanced at the five other patients already awaiting their turns and picked up a magazine.

By four-thirty he had read the jokes in the back of "Anybody's Magazine" for the preceding six months. No physician in reputable standing ever removes old numbers of periodicals from his files. For what better testimony can he offer in support of his claim upon a long-established practice? As Kenwick read, he was aware that his companions were being summoned one by one to embark upon that mysterious journey from whose bourne no traveler returns, departure having been arranged for around some obscure corner, to prevent exchange between arriving and retreating patient of a "Look! Stop! Listen!" signal.