course I do; and you look charming in everything you put on, but I did not know you wanted a new dress. You had something soft and furry, like the breast of a rabbit, the last time you went to a dance with me. I remember it quite well, although I cannot describe it; for the fur was always touching my shoulder, and it came off a little. I found the white hairs on my coat the next morning."
Kitty blushed.
"I am glad you liked that dress," she said; "but you will like what I am going to appear in on Monday even better. I want to be a vision – a dream."
Keith looked at her; a thoughtful expression came into his eyes. He noted the colour which came and went on her checks, the brightness of her brown eyes, the love light, too, which was all too visible, as those well-opened eyes fixed themselves on his face.
"Poor little girl!" he said to himself. Then he glanced at Mollie, and his heart beat quickly. "If only those two could exchange places!" he thought; "it would be easy then to – "
He checked the unfinished thought with a sigh which was scarcely perceptible.
"Where shall we go?" he said. He took out his watch. "Although it is out of the season, there is a passable concert at St. James's Hall, and you are so fond of music, Kit. What does Sister Mollie say?"
"Oh, please call me Mollie," said the elder girl.
"What would you like, Mollie?" he asked.
"The concert, by all means."
"We can take tickets at the door. We will go there, and afterwards have tea at my club."
"Delicious!" said Kitty. "You don't know, Mollie, what tea at Gavon's club is like. Only I do wish – "
"What, dear?"
"That you would not wear your uniform. I didn't think nurses thought it necessary when they were taking holidays."
"I won't, if you dislike it," said Mollie. "I have brought a dress which I can wear. It is not very fashionable, but I don't suppose that matters."
"Would you not rather, Gavon, that Mollie did not come in her uniform?" asked Kitty, in an eager voice.
"Mollie must do exactly what she pleases," was the reply.
"I see you would both rather not have attention drawn to me," said Mollie. "That is quite enough. I will dress as an ordinary lady."
"And lose a good deal," said Gavon. "But perhaps you are right. There is so much disturbance in the air, that anything even savouring of the military draws attention at the present moment."
"Come upstairs at once, Mollie, and I will help to turn you into a fashionable lady," said Kitty, with a laugh.
CHAPTER IV.
THE CONCERT
But this was more easily said than done. Mollie had a certain style about her – the style which accompanies a perfectly-made body and a well-ordered mind. But she had none of that peculiar appearance which constitutes fashion. Her hair was simply knotted at the back of her head, and was without fringe or wave. The only dress she had at her disposal had been made two years ago. The sleeves were too large for the prevailing mode, and the bodice was by no means smart. Mollie, however, put on her unfashionable garment with the best faith in the world, and tripped up to Kitty when her toilet was complete.
"How do you like me?" she said.
Kitty turned to her, and her brown eyes flashed fire.
"Oh, you must not go out looking like that," she was about to say. But she suddenly stopped.
She herself was the very perfection of dainty neatness, of fashionable, yet not too fashionable, attire. Her hair was picturesquely arranged. Her hat was stylish; the very veil which hid and yet revealed the roses on her cheeks and the brightness of her eyes was what the world would call the mode. Beside this dainty and perfectly-arrayed little personage Mollie looked almost dowdy.
"And I could change all that in a minute," thought Kitty. "It is just to lend her my brown hat with its plume of feathers, and the jacket which came home last week, and the deed is done. But shall I do it? Gavon already admires her too much. Now is the time for him to see the difference between us. She shall go as she is. I dare not run the risk of losing him; and he likes her – oh, I know he likes her. This day, perhaps, will settle matters; and Mollie, my darling Mollie, for my sake you must not look your best."
Aloud, Kitty said in a careless tone, —
"Very nice, indeed, Mollie. And how do I look? What do you think of your little sister?"
"How pretty your face is," replied Mollie, "and how neat your figure! Do you remember how I used to scold you long ago for not walking upright? You are very upright now."
But as Mollie spoke Kitty perceived that she had never glanced at the fashionable dress. She only saw the soul in the bright eyes and the happy smile round the lips. Gavon's voice calling them was heard from below. They ran downstairs.
When they appeared, Captain Keith glanced from one sister to the other. He was dimly conscious that a change, and that not exactly for the better, had come over Mollie, and that Kitty looked, as she always did, the perfection of charm. Nevertheless, the expression in Mollie's eyes and the tone of her voice continued to arouse that strange, delicious foreign feeling in his breast. He found that he liked to touch her hand, and that he also liked to look into her brown eyes. He was not yet aware of his own sensations. He only thought, —
"I am but tracing the extraordinary likeness and the extraordinary difference between these two girls. Of course I know Kitty's dear little phiz, and Mollie's is almost the same, feature for feature, and yet there never were any two girls who have less in common."
The three arrived at St. James's Hall in good time. Gavon secured seats for his party, and they soon found themselves listening to a fine concert. Mollie had a passion for music, and as she sat now and allowed it to fill both heart and soul, her eyes kindled, and the colour came rich and deep into her cheeks. Gavon continued to watch her almost stealthily. Kitty chatted whenever she could find a moment to give her gay little voice a chance of being heard. Gavon sat between the two; he answered Kitty, and talked with her, scolding her now and then, and desiring her on many occasions to "hush," "not to make so much noise," to "behave herself," and much more to the same effect. As long as he spoke to her at all, poor Kitty was in the seventh heaven of bliss. From her present position she could not see how often he glanced at Mollie, and fancied that her little stratagem to make her sister not look quite at her best was bringing the most satisfactory results.
The first half of the concert was over, when a man pushed his way along the line of people and dropped into a seat by Kitty's side. She uttered an exclamation, half of annoyance and half of pleasure.
"How do you do, Miss Hepworth?" he said. "I have not seen you for a very long time. – Ah, Keith, how are you?"
"I did not know you were in London, Major Strause," answered the girl.
"London is practically empty; but, all the same, this war news is bringing many of us up," he replied.
Mollie looked round to see what the newcomer was like. She noticed a somewhat thick-set man, with reddish hair and a very long moustache. His eyes were of a light blue. His face was considerably freckled. Mollie voted him at once commonplace and uninteresting, and would not have bestowed any further thought upon him had she
