The strenuous rush of the day of suddenly changed plans was over, and with Gardiner, the assistant professor of geology, to bid him God-speed, Ballard had got as far as the track platform gates of the Boston & Albany Station when Lassley's telegram, like a detaining hand stretched forth out of the invisible, brought him to a stand.

He read it, with a little frown of perplexity sobering his strong, enthusiastic face.

"S.S. Carania, New York.

"To Breckenridge Ballard, Boston.

"You love life and crave success. Arcadia Irrigation has killed its originator and two chiefs of construction. It will kill you. Let it alone.

"Lassley."

He signed the book, tipped the boy for his successful chase, and passed the telegram on to Gardiner.

"If you were called in as an expert, what would you make of that?" he asked.

The assistant professor adjusted his eye-glasses, read the message, and returned it without suggestive comment.

"My field being altogether prosaic, I should make nothing of it. There are no assassinations in geology. What does it mean?"

Ballard shook his head.

"I haven't the remotest idea. I wired Lassley this morning telling him that I had thrown up the Cuban sugar mills construction to accept the chief engineer's billet on Arcadia Irrigation. I didn't suppose he had ever heard of Arcadia before my naming of it to him."

"I thought the Lassleys were in Europe," said Gardiner.

"They are sailing to-day in the Carania, from New York. My wire was to wish them a safe voyage, and to give my prospective address. That explains the date-line of this telegram."

"But it does not explain the warning. Is it true that the Colorado irrigation scheme has blotted out three of its field officers?"

"Oh, an imaginative person might put it that way, I suppose," said Ballard, his tone asserting that none but an imaginative person would be so foolish. "Braithwaite, of the Geodetic Survey, was the originator of the plan for constructing a storage reservoir in the upper Boiling Water basin, and for transforming Arcadia Park into an irrigated agricultural district. He interested Mr. Pelham and a few other Denver capitalists, and they sent him out as chief engineer to stand the project on its feet. Shortly after he had laid the foundations for the reservoir dam, he fell into the Boiling Water and was drowned."

Gardiner's humour was as dry as his professional specialty. "One," he said, checking off the unfortunate Braithwaite on his fingers.

"Then Billy Sanderson took it – you remember Billy, in my year? He made the preliminary survey for an inlet railroad over the mountains, and put a few more stones on Braithwaite's dam. As they say out on the Western edge of things, Sanderson died with his boots on; got into trouble with somebody about a camp-following woman and was shot."

"Two," checked the assistant in geology. "Who was the third?"

"An elderly, dyspeptic Scotchman named Macpherson. He took up the work where Sanderson dropped it; built the railroad over the mountain and through Arcadia Park to the headquarters at the dam, and lived to see the dam itself something more than half completed."

"And what happened to Mr. Macpherson?" queried Gardiner.

"He was killed a few weeks ago. The derrick fell on him. The accident provoked a warm discussion in the technical periodicals. A wire guy cable parted – 'rusted off,' the newspaper report said – and there was a howl from the wire-rope makers, who protested that a rope made of galvanised wire couldn't possibly 'rust off.'"

"Nevertheless, Mr. Macpherson was successfully killed," remarked the professor dryly. "That would seem to be the persisting fact in the discussion. Does none of these things move you?"

"Certainly not," returned the younger man. "I shall neither fall into the river, nor stand under a derrick whose guy lines are unsafe."

Gardiner's smile was a mere eye wrinkle of good-natured cynicism. "You carefully omit poor Sanderson's fate. One swims out of a torrent – if he can – and an active young fellow might possibly be able to dodge a falling derrick. But who can escape the toils of the woman 'whose hands are as bands, and whose feet – '"

"Oh, piff!" said the Kentuckian; and then he laughed aloud. "There is, indeed, one woman in the world, my dear Herr Professor, for whose sake I would joyfully stand up and be shot at; but she isn't in Colorado, by a good many hundred miles."

"No? Nevertheless, Breckenridge, my son, there lies your best chance of making the fourth in the list of sacrifices. You are a Kentuckian; an ardent and chivalric Southerner. If the Fates really wish to interpose in contravention of the Arcadian scheme, they will once more bait the deadfall with the eternal feminine – always presuming, of course, that there are any Fates, and that they have ordinary intelligence."

Ballard shook his head as if he took the prophecy seriously.

"I am in no danger on that score. Bromley – he was Sanderson's assistant, and afterward Macpherson's, you know – wrote me that the Scotchman's first general order was an edict banishing every woman from the construction camps."

"Now, if he had only banished the derricks at the same time," commented Gardiner reflectively. Then he added: "You may be sure the Fates will find you an enchantress, Breckenridge; the oracles have spoken. What would the most peerless Arcadia be without its shepherdess? But we are jesting when Lassley appears to be very much in earnest. Could there be anything more than coincidence in these fatalities?"

"How could there be?" demanded Ballard. "Two sheer accidents and one commonplace tragedy, which last was the fault – or the misfortune – of poor Billy's temperament, it appears; though he was a sober enough fellow when he was here learning his trade. Let me prophesy awhile: I shall live and I shall finish building the Arcadian dam. Now let us side-track Lassley and his cryptogram and go back to what I was trying to impress on your mind when he butted in; which is that you are not to forget your promise to come out and loaf with me in August. You shall have all the luxuries a construction camp affords, and you can geologise to your heart's content in virgin soil."

"That sounds whettingly enticing," said the potential guest. "And, besides, I am immensely interested in dams; and in wire cables that give way at inopportune moments. If I were you, Breckenridge, I should make it a point to lay that broken guy cable aside. It might make interesting matter for an article in the Engineer; say, 'On the Effect of the Atmosphere in High Altitudes upon Galvanised Wire.'"

Ballard paid the tributary laugh. "I believe you'd have your joke if you were dying. However, I'll keep the broken cable for you, and the pool where Braithwaite was drowned, and Sanderson's inamorata – only I suppose Macpherson obliterated her at the earliest possible… Say, by Jove! that's my train he's calling. Good-by, and don't forget your promise."

After which, but for a base-runner's dash down the platform, Ballard would have lost the reward of the strenuous day of changed plans at the final moment.

II
THE TRIPPERS

It was on the Monday afternoon that Breckenridge Ballard made the base-runner's dash through the station gates in the Boston terminal, and stood in the rearmost vestibule of his outgoing train to watch for the passing of a certain familiar suburb where, at the home of the hospitable Lassleys, he had first met Miss Craigmiles.

On the Wednesday evening following, he was gathering his belongings in the sleeper of a belated Chicago train preparatory to another dash across platforms – this time in the echoing station at Council Bluffs – to catch the waiting "Overland Flyer" for the run to Denver.

President Pelham's telegram, which had found him in Boston on the eve of closing a contract with the sugar magnates to go and build refineries in Cuba, was quite brief, but it bespoke haste:

"We need a fighting man who can build railroads and dams and dig ditches in Arcadia. Salary satisfactory to you. Wire quick if you can come."

This was the wording of it; and at the evening hour of train-changing in Council Bluffs, Ballard was sixteen hundred miles on his way, racing definitely to a conference with the president of Arcadia Irrigation in Denver, with the warning telegram from Lassley no more than a vague disturbing under-thought.

What would lie beyond the conference he knew only in the large. As an industrial captain in touch with the moving world of great projects, he was familiar with the plan for the reclamation of the Arcadian desert. A dam was in process of construction, the waters of a mountain torrent were to be impounded, a system of irrigating canals opened, and a connecting link of railway built. Much of the work, he understood, was already done; and he was to take charge as chief of construction and carry it to its conclusion.

So much President Pelham's summons made clear. But what was the mystery hinted at in Lassley's telegram? And did it have any connection with that phrase in President Pelham's wire: "We need a fighting man"?

These queries, not yet satisfactorily answered, were presenting themselves afresh when Ballard followed the porter to the section reserved for him in the Denver sleeper. The car was well filled; and when he could break away from the speculative entanglement long enough to look about him, he saw that the women passengers were numerous enough to make it more than probable that he would be asked, later on, to give up his lower berth to one of them.

Being masculinely selfish, and a seasoned traveller withal, he was steeling himself to say "No" to this request what time the train was rumbling over the great bridge spanning the Missouri. The bridge passage was leisurely, and there was time for a determined strengthening of the selfish defenses.

But at the Omaha station there was a fresh influx of passengers for the Denver car, and to Ballard's dismay they appeared at the first hasty glance to be all women.

"O good Lord!" he ejaculated; and finding his pipe retreated precipitately in the direction of the smoking-compartment, vaguely hoping to dodge the inevitable.

At the turn around the corner of the linen locker he glanced back. Two or three figures in the group of late comers might have asked for recognition if he had looked fairly at them; but he had eyes for only one: a modish young woman in a veiled hat and a shapeless gray box travelling-coat, who was evidently trying to explain something to the Pullman conductor.

"Jove!" he exclaimed; "if I weren't absolutely certain that Elsa Craigmiles is half-way across the Atlantic with the Lassleys – but she is; and if she were not, she wouldn't be here, doing the 'personally conducted' for that mob." And he went on to smoke.

It was a very short time afterward that an apologetic Pullman conductor found him, and the inevitable came to pass.

"This is Mr. Ballard, I believe?"

A nod, and an uphanding of tickets.

"Thank you. I don't like to discommode you, Mr. Ballard; but – er – you have an entire section, and – "

"I know," said Ballard crisply. "The lady got on the wrong train, or she bought the wrong kind of ticket, or she took chances on finding the good-natured fellow who would give up his berth and go hang himself on a clothes-hook in the vestibule. I have been there before, but I have not yet learned how to say 'No.' Fix it up any way you please, only don't give me an upper over a flat-wheeled truck, if you can help it."

An hour later the dining-car dinner was announced; and Ballard, who had been poring over a set of the Arcadian maps and profiles and a thick packet of documents mailed to intercept him at Chicago, brought up the rear of the outgoing group from the Denver car.

In the vestibule of the diner he found the steward wrestling suavely with a late contingent of hungry ones, and explaining that the tables were all temporarily full. Ballard had broad shoulders and the Kentucky stature to match them. Looking over the heads of the others, he marked, at the farther end of the car, a table for two, with one vacant place.

"I beg your pardon – there is only one of me," he cut in; and the steward let him pass. When he had dodged the laden waiters and was taking the vacant seat he found himself confronting the young woman in the veiled hat and the gray box-coat, identified her, and discovered in a petrifying shock of astoundment that she was not Miss Elsa Craigmiles's fancied double, but Miss Craigmiles herself.

"Why, Mr. Ballard – of all people!" she cried, with a brow-lifting of genuine or well-assumed surprise. And then in mock consternation: "Don't tell me that you are the good-natured gentleman I drove out of his section in the sleeping-car."

"I sha'n't; because I don't know how many more there are of me," said Ballard. Then, astonishment demanding its due: "Did I only dream that you were going to Europe with the Herbert Lassleys, or – "

She made a charming little face at him.

"Do you never change your plans suddenly, Mr. Ballard? Never mind; you needn't confess: I know you do. Well, so do I. At the last moment I begged off, and Mrs. Lassley fairly scolded. She even went so far as to accuse me of not knowing my own mind for two minutes at a time."

Ballard's smile was almost grim.

"You have given me that impression now and then; when I wanted to be serious and you did not. Did you come aboard with that party at Omaha?"

"Did I not? It's my – that is, it's cousin Janet Van Bryck's party; and we are going to do Colorado this summer. Think of that as an exchange for England and a yachting voyage to Tromsoe!"

This time Ballard's smile was affectionately cynical.

"I didn't suppose you ever forgot yourself so far as to admit that there was any America west of the Alleghany Mountains."

Miss Elsa's laugh was one of her most effective weapons. Ballard was made to feel that he had laid himself open at some vulnerable point, without knowing how or why.

"Dear me!" she protested. "How long does it take you to really get acquainted with people?" Then with reproachful demureness: "The man has been waiting for five full minutes to take your dinner order."

One of Ballard's gifts was pertinacity; and after he had told the waiter what to bring, he returned to her question.

"It is taking me long enough to get acquainted with you," he ventured. "It will be two years next Tuesday since we first met at the Herbert Lassleys', and you have been delightfully good to me, and even chummy with me – when you felt like it. Yet do you know you have never once gone back of your college days in speaking of yourself? I don't know to this blessed moment whether you ever had any girlhood; and that being the case – "

"Oh, spare me!" she begged, in well-counterfeited dismay. "One would think – "

"One would not think anything of you that he ought not to think," he broke in gravely; adding: "We are a long way past the Alleghanies now, and I am glad you are aware of an America somewhat broader than it is long. Do I know any of your sight-seers, besides Mrs. Van Bryck?"

"I don't know; I'll list them for you," she offered. "There are Major Blacklock, United States Engineers, retired, who always says, 'H'm – ha!' before he contradicts you; the major's nieces, Madge and Margery Cantrell – the idea of splitting one name for two girls in the same family! – and the major's son, Jerry, most hopeful when he is pitted against other young savages on the football field. All strangers, so far?"

Ballard nodded, and she went on.

"Then there are Mrs. Van Bryck and Dosia – I am sure you have met them; and Hetty Bigelow, their cousin, twice removed, whom you have never met, if Cousin Janet could help it; and Hetty's brother, Lucius, who is something or other in the Forestry Service. Let me see; how many is that?"

"Eight," said Ballard, "counting the negligible Miss Bigelow and her tree-nursing brother."

"Good. I merely wanted to make sure you were paying attention. Last, but by no means least, there is Mr. Wingfield —the Mr. Wingfield, who writes plays."

Without ever having been suffered to declare himself Miss Elsa's lover, Ballard resented the saving of the playwright for the climax; also, he resented the respectful awe, real or assumed, with which his name was paraded.

"Let me remember," he said, with the frown reflective. "I believe it was Jack Forsyth the last time you confided in me. Is it Mr. Wingfield now?"

"Would you listen!" she laughed; but he made quite sure there was a blush to go with the laugh. "Do you expect me to tell you about it here and now? – with Mr. Wingfield sitting just three seats back of me, on the right?"

Ballard scowled, looked as directed, and took the measure of his latest rival.

Wingfield was at a table for four, with Mrs. Van Bryck, her daughter, and a shock-headed young man, whom Ballard took to be the football-playing Blacklock. In defiance of the clean-shaven custom of the moment, or, perhaps, because he was willing to individualise himself, the playwright wore a beard closely trimmed and pointed in the French manner; this, the quick-grasping eyes, and a certain vulpine showing of white teeth when he laughed, made Ballard liken him to an unnamed singer he had once heard in the part of Mephistopheles.

The overlooking glance necessarily included Wingfield's table companions: Mrs. Van Bryck's high-bred contours lost in adipose; Dosia's cool and placid prettiness – the passionless charms of unrelieved milk-whiteness of skin and masses of flaxen hair and baby-blue eyes; the Blacklock boy's square shoulders, heavy jaw, and rather fine eyes – which he kept resolutely in his plate for the better part of the time.

At the next table Ballard saw a young man with the brown of an out-door occupation richly colouring face and hands; an old one with the contradictory "H'm – ha!" written out large in every gesture; and two young women who looked as if they might be the sharers of the single Christian name. Miss Bigelow, the remaining member of the party, had apparently been lost in the dinner seating. At all events, Ballard did not identify her.

"Well?" said Miss Craigmiles, seeming to intimate that he had looked long enough.

"I shall know Mr. Wingfield, if I ever see him again," remarked Ballard. "Whose guest is he? Or are you all Mrs. Van Bryck's guests?"

"What an idea!" she scoffed. "Cousin Janet is going into the absolutely unknown. She doesn't reach even to the Alleghanies; her America stops short at Philadelphia. She is the chaperon; but our host isn't with us. We are to meet him in the wilds of Colorado."

"Anybody I know?" queried Ballard.

"No. And – oh, yes, I forgot; Professor Gardiner is to join us later. I knew there must be one more somewhere. But he was an afterthought. I – Cousin Janet, I mean – got his acceptance by wire at Omaha."

"Gardiner is not going to join you," said Ballard, with the cool effrontery of a proved friend. "He is going to join me."

"Where? In Cuba?"

"Oh, no; I am not going to Cuba. I am going to live the simple life; building dams and digging ditches in Arcadia."

He was well used to her swiftly changing moods. What Miss Elsa's critics, who were chiefly of her own sex, spoke of disapprovingly as her flightiness, was to Ballard one of her characterizing charms. Yet he was quite unprepared for her grave and frankly reproachful question:

"Why aren't you going to Cuba? Didn't Mr. Lassley telegraph you not to go to Arcadia?"

"He did, indeed. But what do you know about it? – if I may venture to ask?"

For the first time in their two years' acquaintance he saw her visibly embarrassed. And her explanation scarcely explained.

"I – I was with the Lassleys in New York, you know; I went to the steamer to see them off. Mr. Lassley showed me his telegram to you after he had written it."

They had come to the little coffees, and the other members of Miss Craigmiles's party had risen and gone rearward to the sleeping-car. Ballard, more mystified than he had been at the Boston moment when Lassley's wire had found him, was still too considerate to make his companion a reluctant source of further information. Moreover, Mr. Lester Wingfield was weighing upon him more insistently than the mysteries. In times past Miss Craigmiles had made him the target for certain little arrows of confidence: he gave her an opportunity to do it again.

"Tell me about Mr. Wingfield," he suggested. "Is he truly Jack Forsyth's successor?"

"How can you question it?" she retorted gayly. "Some time – not here or now – I will tell you all about it."

"'Some time,'" he repeated. "Is it always going to be 'some time'? You have been calling me your friend for a good while, but there has always been a closed door beyond which you have never let me penetrate. And it is not my fault, as you intimated a few minutes ago. Why is it? Is it because I'm only one of many? Or is it your attitude toward all men?"

She was knotting her veil and her eyes were downcast when she answered him.

"A closed door? There is, indeed, my dear friend: two hands, one dead and one still living, closed it for us. It may be opened some time" – the phrase persisted, and she could not get away from it – "and then you will be sorry. Let us go back to the sleeping-car. I want you to meet the others." Then with a quick return to mockery: "Only I suppose you will not care to meet Mr. Wingfield?"

He tried to match her mood; he was always trying to keep up with her kaleidoscopic changes of front.

"Try me, and see," he laughed. "I guess I can stand it, if he can."

And a few minutes later he had been presented to the other members of the sight-seeing party; had taken Mrs. Van Bryck's warm fat hand of welcome and Dosia's cool one, and was successfully getting himself contradicted at every other breath by the florid-faced old campaigner, who, having been a major of engineers, was contentiously critical of young civilians who had taken their B.S. degree otherwhere than at West Point.