The Girl Up-stairs had quite a miscellaneous lot of plot; indeed a plot fancier might have detected nearly all the famous strains in its lineage. Its foci were Sylvia Huntington, the beautiful multi-millionairess, and Richard Benham, nephew of Minim, the Cosmetic King and head of the Talcum Trust. Sylvia, tired of being sought for her wealth, and yearning to be loved for herself alone, has run away to Bohemia and installed herself in an attic over a studio occupied by two penniless artists, one a poet, the other a musician. Only they aren't penniless any more, having leaped to wealth and fame with an immensely successful musical comedy they have just written. And, like Nanki Poo, the musician isn't really a musician, but is the talented, rebellious nephew of the Cosmetic King, none other than Dick Benham himself, a truant from his tyrannical uncle's determination to make him into a rouge and talcum salesman. He falls in love with Sylvia, not knowing her as Sylvia, of course, but only as the girl up-stairs, a poor little wretch to whom in the goodness of his heart, he is giving singing lessons. And she falls in love with him, knowing him neither as Dick Benham, nor as the successful composer (because his authorship of the musical comedy has been kept a secret from her), but only as a poor struggling musician. Poor Dick's affections are temporarily led astray by the mercenary seductions of the leading lady in his opera, who has learned the secret of his true identity and vast wealth, and means to marry him under the cloak of disinterested affection. He gets bad advice from his poet friend, too, who has dishonorable designs on the girl up-stairs and so warns Dick against throwing himself away on a nobody, of, possibly, doubtful virtue. It is, of course, essential to Sylvia that Dick should ask her to marry him before he learns who she really is, in order that she may be sure it isn't for her wealth that he is seeking her.
This was the general lie of the land, though the thing was complicated, of course, by minor intrigues, as for instance in the first act, when Minim, the uncle, came to inquire of the successful composer what his terms would be for introducing a song into his opera, extolling the merits of Minim's newest brand of liquid face-powder. Then there was the comic detective, whom Sylvia's frantic father had given the job of finding her, and who, considering that he was the typical idiot detective of musical comedy, came unaccountably close to doing it.
Then in the second act, there was the confusion produced by the fact that Dick and his poet friend gave a midnight party on the roof, unaware of the fact that Sylvia made it a practise, during these hot nights, to crawl out from her attic, on to this same roof and sleep there. And on this particular night, she had invited her six bachelor-girl friends, who were in her confidence, to come and share its hospitalities with her. The mutual misunderstandings, by this time piled mountain high, were projected into the third act by the not entirely unprecedented device of a mask ball in the palatial Fifth Avenue mansion of Sylvia's father, in celebration of her return home—a ball whose invitation list was precisely coincident, even down to the detective, with the persons who had appeared in the first two acts. One minute before the last curtain, Dick and Sylvia manage to thread their way out of the tangle of scandal and misconception, and satisfy each other as to the disinterested quality of their mutual adoration, falling into each other's arms just as the curtain starts down.
It was not, of course, until after a good many rehearsals that Rose could have given a connected account of it like that. They worked for three hours on this first occasion, merely getting through the first act—a miserable three hours, too, for Rose, owing to a little misfortune that befell her right at the beginning.
The glow of determination Galbraith had inspired her with, to put her own shoulder to the wheel and do her very topmost best, for the one great desideratum, the success of the show, had kept her studying her little handful of lines long after she supposed she knew them perfectly. They weren't very satisfactory lines to study—just the smallest of conversational small change, little ejaculations of delight or dismay, acquiescence or dissent. But the trouble with them was, they were, for the most part, exactly the last expressions that a smart young woman of the type she was supposed to represent would use.
So, remembering what Galbraith had said about everybody down to the last chorus-man doing the best he knew for the success of the show, Rose sought him out, for a minute, just before the rehearsal began, and asked if she might change two of her lines a little.
Galbraith grinned at her, turned and beckoned to the baby-faced man in spectacles who stood a dozen paces away. "Oh, Mr. Mills!" he called. "Can you come over here a minute?"
"He's the author," Galbraith then explained to Rose, "and we can't change this book of his without his permission."
Then, "This is Miss Dane of the sextette," he said to Mills, "and she tells me she'd like to make one or two changes in her lines."
It didn't need a sensitive ear to detect a note of mockery in this speech, though Galbraith's face was perfectly solemn. But the face of the author went a delicate pink all over, and his round eyes stared. "My God!" he said.