When the train drew up to the platform at Beaver Brook, Brockway asked Gertrude if he should go and see if there were a message for her.

"No," she said, perversely; "let it find me, if it can."

It came, a minute later, by the hand of Conductor Halsey. She read it with a little frown of perplexity gathering between the straight brows.

"Do we live or die?" Brockway asked, crucially anxious to know what his friend had been able to do for him.

"Why, I don't understand it at all; it's simply Greek, after the other one. Papa says: 'Do not return on forenoon train. We shall wait for you.'"

"Good; I am a true prophet, and our white day is assured."

"Y—yes, but I don't begin to understand how he came to change his mind so quickly."

"Perhaps it was the moral force of my impudence," ventured Brockway.

"Don't make any such mistake as that," she said, quickly. "Papa will not forgive or forget that, and I am sorry you did it."

"You are a bundle of inconsistencies, as you promised to be," Brockway retorted. "But I'm not sorry, and I don't pretend to be. If I had smothered my little inspiration and given you your telegram at Golden, you wouldn't be enjoying this magnificent scenery now."

"No; and it is grand beyond words, isn't it? If it wasn't for the name of it, I could rave over it like a veritable 'Cooky.' Can't we go out on the platform?"

"Yes; but you'll get your eyes full of cinders."

"I don't care. Let's go, anyway."

They did it and, for a wonder, found the rear platform of the second observation-car unoccupied. Gertrude wanted to sit on the step, but Brockway objected, on the score of danger from the jutting rocks; so they stood together, bracing themselves and clinging to the hand-rails.

"Show me the 'Old Man of the Mountain' when we come to it," she said; "of course, there is an 'Old Man of the Mountain'?"

"There is, indeed, but we passed him long ago—at least, the one that is always pointed out to the 'Cookies' as you call them. But if you will watch the outlines of the cliffs you can find one of your own in any half-mile of the canyon."

"I don't want one if they are as cheap as that. I suppose you have made them at a pinch, haven't you? when you had forgotten to point out the real one?"

"I'm afraid I have; just as I have been obliged to invent statistics. But that is the fault of the man with a note-book; he will have them, you know."

"Why don't you tell him the truth?"

"Because he is too numerous in my calling; and again, because I don't often know enough of the truth to satisfy him."

"But it is wrong to invent things," she protested, dropping her irresponsible rÔle to fight for the love of truth which was her Puritan birthright.

"I agree with you; but ciceronic lying is almost a disease. It's a paragrapher's proverb that railwaymen can't tell the truth, though I think a good many of us try to confine ourselves to the scenic lie. That seems to be almost necessary."

Gertrude did not reply. The bounding, swaying rear platform of a moving train which is reeling off miles and mountain heights of a stupendous natural panorama is not exactly the place for a dispassionate discussion of ethical principles. It hurt her to believe that her companion did not love truth in the abstract, and she meant to have it out with him later; but for the moment she put duty aside and opened the door to enthusiasm.

"Just think!" she exclaimed; "yesterday the horizon was so far away that it was actually invisible; and now you can almost reach out and touch it. Please don't let me miss anything that I ought to see."

"Did anyone show you 'The Mule' when you were up here last year?"

"No."

"It is just around the second curve ahead. Look well up the mountain-side for a big bowlder facing the canyon; it's a picture, not a figure."

She followed his directions, grasping the hand-rails and leaning far out to get a wider view. Brockway wanted to put his arm around her and hold her, but not daring to, stood by to catch her if she should lose her balance. Presently the great bowlder circled into view, and she got a very satisfactory sight of the pictured mule on its face before a sudden swerve of the train swept it out of range.

"How wonderful!" she exclaimed. "How did anyone ever get up there to paint it?"

"It is only a 'water-painting,' as the people up here call it; a natural discoloration on the face of the rock," he answered. "Isn't it life-like, though?"

"Indeed, it is; it is almost incredible." Then, suddenly: "That isn't a scenic fib, is it?"

"No. If you'll agree not to flog me with my own whip, I'll promise to tell you the truth and nothing but the truth, all day."

"Isn't that a very large promise?"

Brockway had a fleeting glimpse into the book of prophecy and saw that it might easily become so. None the less, he would not go back.

"Large or small, I'll keep it to the letter. But now I want to show you something else. Stand right here beside me and watch the outlines of those cliffs on the right; just the outline against the sky, I mean. Follow it steadily and tell me what you see when I give the word."

The train darted around a sharp curve and sped away up one of the few tangents in its tortuous path. "Now!" said Brockway, as the timbers of a culvert roared under the trucks of the observation-car.

"It's the Sphynx!" she said, with a little tremor of awe in her voice; "solemn, and majestic, and grander than anything I ever imagined! And I never even heard of it before. Do people know about it?"

"Not many; and those who do are hardened by familiarity. I have seen it a great many times, but it always gets near to me, just as it did to you."

"I shall never forget it. Please don't show me any more wonders just now. I shall rave like the most foolish 'Cooky' of them all if you do."

"I can't," said Brockway; "I don't know any more." A shrill whistle from the engine cut the sentence short, and Gertrude asked if they were coming to a station.

"Yes, it's Forks Creek, famous for its pies. Everybody eats pie at the Forks. Will you climb down from the heights of the sublime and go and eat pie with me?"

"Anything you say," she rejoined, laughing; and a few minutes later, John Burton the canny was scandalized to see the President's daughter walking up and down the narrow platform with the passenger agent, eating her half of an apple turnover which Brockway had bought and shared with her.