"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 not observed a curious change in Keith's appearance. His face turned first white, then stern and sombre. He ceased to talk to Kitty, who was devoting herself now, with all that propensity for flirting which was part of her nature, to Major Strause.
"Do you know him well?" asked Mollie suddenly, in a low tone.
Keith gave a start when she addressed him. He turned and looked full at her.
"You already hold a secret of mine," he said, "and I am about to make you a present of another. The man who drugged me that night six months ago is Major Strause."
Mollie had too much self-control to show the surprise which filled her.
"I have something I want to tell you," continued Keith. "Can I see you somewhere alone?"
"Gavon, the music is going to begin again; do stop talking," cried Kitty, in a restless voice.
A girl who made her name at that concert came to the front of the stage, and her magnificent organ-like notes filled the building. Mollie, however, much as she loved music, scarcely listened. It was not only the tone in Gavon Keith's voice, but the words which he had uttered, which filled her mind. Something was undoubtedly wrong.
The song came to an end, and in the furore which followed Keith seized the opportunity to bend again towards Mollie.
"I shall be in the front drawing-room to-night at seven," he said. "Can you come down a few moments before the rest of the party?"
"I ought not," was Mollie's response.
"I ask it as a favour—a great personal favour. Will you refuse me?"
Mollie did not reply for an instant.
"I will come," she said then.
Major Strause did his utmost to make himself agreeable to Kitty, who, after the first moment of excitement, paid him but scant attention. Keith, having received Mollie's promise, was now quite ready to devote himself to the little girl, and his gay remarks and her smart repartees caused considerable laughter on the part of all the young people.
When the concert was over, Major Strause invited the entire party to have tea with him at his club. Mollie looked at Keith, expecting him to reply in the negative; but to her surprise he accepted the invitation with apparent cordiality. They all went to the Carlton, where the major entertained them; and as if thoroughly satisfied with his conversation with Kitty, he now turned his attention to Mollie. She told him she was a Sister of the Red Cross; whereupon he looked her all over, and said, bowing as he spoke—
"Then we may have the pleasure of meeting again, and under different circumstances."
"What do you mean?" she asked.
"Why, my dear Miss Hepworth, need you ask? I mean that war is inevitable: my regiment, and that also of my friend Captain Keith, will be among the first ordered to the front. If you are a Sister of the Red Cross—"
"I shall go to South Africa," replied Mollie. She spoke in a low tone, and there was a thrill of enthusiasm in her voice.
"Then we are quite certain to meet again," he said, and he turned from her to Kitty to address a remark on a totally different matter.
It was past six o'clock when the girls got home. Kitty was inclined to dawdle downstairs; but Mollie, remembering her promise to Keith, hurried off to her room. Kitty stayed behind for a moment. She suddenly stretched out her hand to Keith, who took it in some astonishment.
"Well, little girl, what now?" he asked.
"Tell me what you think of her," said Kitty.
"Think of whom?"
"My sister—my Mollie."
"I admire her very much; she reminds me of you."
"Oh, does she?" answered Kitty. She dimpled and smiled. "Is that really why you are so much interested in her, Gavon?"
"It is one of the reasons," he replied, after a pause. "She reminds me most wonderfully of you. But at the same time there is a great gulf between you. Your sister has been trained in one of the finest professions a woman can possibly take up. She has therefore a force of character, an individuality which—"
"Which I lack. Oh, you need not apologize," said Kitty, looking half amused, half sorrowful. "Mollie always, always had just what I lack. But I thought—"
"Let your thoughts run in the old groove, Kitty," replied the young man. "You are the most charming friend a man could possibly possess. But I hear my mother's voice. We shall meet again at dinner."
Kitty mounted the stairs slowly.
"I wonder what Gavon really thinks about me, and about her," she said to herself. "It was to me he spoke whenever he had a chance this afternoon, but it was at her he looked. Did he wonder at her dowdy dress? Darling Mollie was not at her best; and I felt such a wretch, for I could have made her lovely. When once I am engaged to Gavon, my Mollie shall want for nothing."
Kitty hummed a gay air as she entered the large bedroom which the two girls shared. Mollie was arranging her hair before the glass, and the lace evening dress which she had worn on the previous night lay on her bed.
"What a hurry you are in!" cried Kitty. "We have oceans of time. We need not begin to dress until seven o'clock."
"But I must dress at once," replied Mollie.
"Why?"
Mollie did not answer immediately.
"Why?" repeated Kitty, whose nerves were so strained that she could brook no suspense of any sort.
Mollie