"I shall, no doubt, and that's why I cling to you. You must still look after me," Nick went on. "Don't melt away into a mere improbable reminiscence, a delightful, symbolic fable—don't if you can possibly help it. The trouble is, you see, that you can't really keep hold very tight, because at bottom it will amuse you much more to see me in another pickle than to find me simply jogging down the vista of the years on the straight course. Let me at any rate have some sort of sketch of you as a kind of feather from the angel's wing or a photograph of the ghost—to prove to me in the future that you were once a solid sociable fact, that I didn't invent you, didn't launch you as a deadly hoax. Of course I shall be able to say to myself that you can't have been a fable—otherwise you'd have a moral; but that won't be enough, because I'm not sure you won't have had one. Some day you'll peep in here languidly and find me in such an attitude of piety—presenting my bent back to you as I niggle over some interminable botch—that I shall give cruelly on your nerves and you'll just draw away, closing the door softly. You'll be gentle and considerate about it and spare me, you won't even make me look round. You'll steal off on tiptoe, never, never to return."
Gabriel consented to sit; he professed he should enjoy it and be glad to give up for it his immediate foreign commerce, so vague to Nick, so definite apparently to himself; and he came back three times for the purpose. Nick promised himself a deal of interest from this experiment, for with the first hour of it he began to feel that really as yet, given the conditions under which he now studied him, he had never at all thoroughly explored his friend. His impression had been that Nash had a head quite fine enough to be a challenge, and that as he sat there day by day all sorts of pleasant and paintable things would come out in his face. This impression was not gainsaid, but the whole tangle grew denser. It struck our young man that he had never seen his subject before, and yet somehow this revelation was not produced by the sense of actually seeing it. What was revealed was the difficulty—what he saw was not the measurable mask but the ambiguous meaning. He had taken things for granted which literally were not there, and he found things there—except that he couldn't catch them—which he had not hitherto counted in or presumed to handle. This baffling effect, eminently in the line of the mystifying, so familiar to Nash, might have been the result of his whimsical volition, had it not appeared to our artist, after a few hours of the job, that his sitter was not the one who enjoyed it most. He was uncomfortable, at first vaguely and then definitely so—silent, restless, gloomy, dim, as if on the test the homage of a directer attention than he had ever had gave him less pleasure than he would have supposed. He had been willing to judge of this in good faith; but frankly he rather suffered. He wasn't cross, but was clearly unhappy, and Nick had never before felt him contract instead of expanding.
It was all accordingly as if a trap had been laid for him, and our young man asked himself if it were really fair. At the same time there was something richly rare in such a relation between the subject and the artist, and Nick was disposed to go on till he should have to stop for pity or for shame. He caught eventually a glimmer of the truth underlying the strangeness, guessed that what upset his friend was simply the reversal, in such a combination, of his usual terms of intercourse. He was so accustomed to living upon irony and the interpretation of things that it was new to him to be himself interpreted and—as a gentleman who sits for his portrait is always liable to be—interpreted all ironically. From being outside of the universe he was suddenly brought into it, and from the position of a free commentator and critic, an easy amateurish editor of the whole affair, reduced to that of humble ingredient and contributor. It occurred afterwards to Nick that he had perhaps brought on a catastrophe by having happened to throw off as they gossiped or languished, and not alone without a cruel intention, but with an impulse of genuine solicitude: "But, my dear fellow, what will you do when you're old?"
"Old? What do you call old?" Nash had replied bravely enough, but with another perceptible tinge of irritation. "Must I really remind you at this time of day that that term has no application to such a condition as mine? It only belongs to you wretched people who have the incurable superstition of 'doing'; it's the ignoble collapse you prepare for yourselves when you cease to be able to do. For me there'll be no collapse, no transition, no clumsy readjustment of attitude; for I shall only be, more and more, with all the accumulations of experience, the longer I live."
"Oh I'm not particular about the term," said Nick. "If you don't call it old, the ultimate state, call it weary—call it final. The accumulations of experience are practically accumulations of fatigue."
"I don't know anything about weariness. I live freshly—it doesn't fatigue me."
"Then you need never die," Nick declared.
"Certainly; I daresay I'm indestructible, immortal."
Nick laughed out at this—it would be such fine news to some people. But it was uttered with perfect gravity, and it might very well have been in the spirit of that gravity that Nash failed to observe his agreement to sit again the next day. The next and the next and the next passed, but he never came back.
True enough, punctuality was not important for a man who felt that he had the command of all time. Nevertheless his disappearance "without a trace," that of a personage in a fairy-tale or a melodrama, made a considerable impression on his friend as the months went on; so that, though he had never before had the least difficulty about entering into the play of Gabriel's humour, Nick now recalled with a certain fanciful awe the special accent with which he had ranked himself among imperishable things. He wondered a little if he hadn't at last, balancing always on the stretched tight-rope of his wit, fallen over on the wrong side. He had never before, of a truth, been so nearly witless, and would have to have gone mad in short to become so singularly simple. Perhaps indeed he was acting only more than usual in his customary spirit—thoughtfully contributing, for Nick's enlivenment, a purple rim of mystery to an horizon now so dreadfully let down. The mystery at any rate remained; another shade of purple in fact was virtually added to it. Nick had the prospect, for the future, of waiting to see, all curiously, when Nash would turn up, if ever, and the further diversion—it almost consoled him for the annoyance of being left with a second unfinished thing on his hands—of imagining in the portrait he had begun an odd tendency to fade gradually from the canvas. He couldn't catch it in the act, but he could have ever a suspicion on glancing at it that the hand of time was rubbing it away little by little—for all the world as in some delicate Hawthorne tale—and making the surface indistinct and bare of all resemblance to the model. Of course the moral of the Hawthorne tale would be that his personage would come back in quaint confidence on the day his last projected shadow should have vanished.