to his identity. The request for evening clothes, however, rather reassured him; evidently his first plunge into this mystery was not to occur in any stratum of low society; no vast amount of personal danger could be involved in such preliminaries. The truth was, the note only increased his former interest in the case, and his determination to probe more deeply into its mystery. So the advertiser was a woman! This fact also stimulated his imagination, and rendered him the more eager. By Jove! he would see the thing through!

His decision was reached, yet West, although still young and adventurous, had received the rigorous training of the soldier, and learned lessons of discretion. He would go, but would make every effort to protect himself against any possible treachery. He had a room at the Club, and wrote a letter or two before proceeding to dress, arranging for their personal delivery in case he failed to return at a designated time; carefully examined his service revolver, and deposited it in the pocket of the business suit he decided to wear. Satisfied with these arrangements, he dressed rapidly, and then packed his bag, bearing it in his hand as he departed in ample time for the point of rendezvous. A cab took him to the place designated, and he found himself alone in a rather desolate spot, with which he was in no way familiar. No doubt he had passed there again and again, as a boulevard extended along one side of the small park, yet his memory retained no clear recollection of the place. There were a few small stores opposite, while the park itself was well kept, and populated almost entirely by nursemaids, judging from the number of baby carriages trailing along the walks. Back of the curb were a few benches, but West chose to remain outside, depositing his bag in plain view of any one passing, and then walked back and forth somewhat nervously. He was there several minutes ahead of time, and compared his watch by a clock in a church tower a block away. He had no knowledge of how he was to be approached, or identified, but his being requested to bring a bag containing evening clothes, somehow suggested riding, rather than walking, and consequently his eyes followed more or less intently the constant stream of automobiles.

He grew restless, and more doubtful as the moments slipped past. Surely he could not have mistaken the place of appointment or the hour? He glanced at the scene to again reassure himself. No, that was impossible; the park name was plainly decipherable beside the entrance, and his watch coincided exactly with the clock in the tower. He stood beside his bag, staring up and down the boulevard, permitting his eyes to occasionally wander to the scene within the enclosure. Nothing rewarded his scrutiny. Then suddenly, without slightest warning, a black limousine whirled in alongside the curb, and came to a stop immediately in front of where he waited. The chauffeur, dressed in plain dark livery, stepped out, and threw open the rear door, without asking so much as a question. Except that the fellow stood there, looking directly toward him, his fingers on the latch, expectantly, West would not have known that he was wanted. Yet it was all so obvious he could not question. Silently he picked up his bag, and stepped forward. He saw no one within, but firm in the belief that the chauffeur must have his orders, he entered blindly, the door closing instantly behind him. The curtains were drawn, the interior gloomy and indistinct, and the driver had resumed his seat, and started the motor, before West realized that he was not alone. In one corner of the wide back seat, drawn back from any possible observation from without, sat a woman.

At first glance he could only barely distinguish the outlines of her figure, dimly discernable against the dark background of the upholstery, but, as his eyes accustomed themselves to the faint light, her features also became dimly visible—enough so, at least, to convince him that she was young. Neither spoke for some moments, while the automobile gathered speed, and West had an uncomfortable feeling that the lady was watching him with great intentness. Slightly embarrassed, and uncertain as to his best course of action, the young man remained silent, his eyes on the burly back of the chauffeur, revealed through the front glass. He could only quietly await her explanation of this strange situation. The delay was not a long one. She laughed, nervously perhaps, yet with a sense of humour at the awkward position.

"Quite melodramatic, is it not, Captain West?" she asked, in a decidedly pleasant voice. "I trust it appeals thoroughly to that disposition for adventure of which you wrote. I assure you I have arranged the details to the best of my ability."

"Nothing more could be desired, I am sure," he confessed, surprised at her tone, and glancing toward her. "I certainly am left completely in the dark, unable even to clearly distinguish my mysterious companion in adventure."

"And there really is no longer any occasion for such concealment." She lifted the heavy curtain beside her, permitting the grey light to rest upon her face. "I preferred not to be seen at the park for obvious reasons; but here, alone with you, such precaution is quite unnecessary. We are to be either friends, or enemies, so frankness is the best course."

He saw the face of a young woman of twenty-four, or five, with dark eyes and hair, her cheeks flushed with health and excitement, her lips smiling. It was a face of unusual attractiveness, not regular, perhaps, in any of its features, yet filled with character, and glowing with life. It was to him a totally unfamiliar countenance, but one which as instantly awakened his interest. He liked the girl, and believed in her.

"I can only thank you," he said, rather lamely. "Although I do not understand now how we could ever become enemies. Surely, that is not a threat?"

"Oh, no, it is far too true. You have yet to learn what I require. Yet that was very nicely said. I take it to mean your first impression of me is not unfavourable?"

"Very far from it. I am already deeply interested in my task. If I lacked an incentive before, you have furnished it. I am only too glad I was the fortunate volunteer."

She laughed again softly, her eyes still on his face.

"Really, I had not anticipated such a sincere compliment. No doubt you learned these delightful speeches in France," she answered, a very faint tinge of sarcasm in the words. "However, this is a very serious matter, Captain West, and really has nothing to do with my personal appearance. I am, of course, being a woman, glad that I please you, but we must consider this particular affair from an entirely different standpoint. I am seeking neither flirtation nor compliment; merely a trustworthy agent. First of all, it is necessary that you comprehend this."

He bowed, impressed by her manner, and somewhat ashamed of his impetuousity.

"I accept the reproof," he said quietly, "and will endeavour henceforth not to offend in any way. I am entirely at your service."

"There is no offence; I merely thought it best there should be no misunderstanding. Now, I am sure, we can proceed intelligently. Indeed, I am going to frankly confess, I also like your appearance. This mutual liking ought to be half the battle. We have quite a ride before us yet; you may question me if you wish."

CHAPTER II

A SUDDEN ENGAGEMENT

West gazed out through the window, wondering where they were. In his interest in his companion, he had until this moment, taken no note of things without, nor did his eyes rest now upon any familiar scene. They were swiftly, and noiselessly, passing blocks of respectable residences, none of these particularly