“Here is a note from St. Petersburg, written by Lord Donal himself, saying the Princess had sent him the companion glove to the one you now have in your hand. He says he is sure the Princess knows who her impersonator was, but that she won’t tell; and, although I had read this note, it never struck me that the Princess herself was the woman. Miss Baxter, you have solved the puzzle!” “I should be glad to think so,” replied the girl, rising, “and I am very happy if I have enabled you to give up a futile chase.” “It is as plain as daylight,” replied the detective. “Lord Donal’s description fits the Princess exactly, and yet I never thought of her before.” Jennie hurried away from the detective’s office, happy in the belief that she had not betrayed herself, although she was not blind to the fact that her escape was due more to good luck than to any presence of mind of her own, which had nearly deserted her at one or two points in the conversation. When Mr. Hardwick saw her, he asked how much space he should have to reserve for the romance in high life; but she told him there was nothing in the case, so far as she could see, to interest any sane reader. Here matters rested for a fortnight; then the girl received an urgent note from Cadbury Taylor, asking her to call at his office next day promptly at four o’clock. It was very important, he said, and he hoped she would on no account disappoint him. Jennie’s first impulse was not to go, but she was so anxious to learn what progress the detective had made in the case, fearing that at last he might have got on the right track, that she felt it would be unwise to take the risk of not seeing him. If his suspicions were really aroused, her absence might possibly serve to confirm them. Exactly at four o’clock next afternoon she entered his office and found him, to her relief, alone. He sprang up from his table on seeing her, and said in a whisper, “I am so glad you have come. I am in rather a quandary. Lord Donal Stirling is in London on a flying visit. He called here yesterday.” The girl caught her breath, but said nothing. “I explained to him the reasons I have for believing that it was actually the Princess von Steinheimer whom he met at the Duchess of Chiselhurst’s ball. He laughed at me; there was no convincing him. He said that theory was more absurd than the sending him a picture of a housemaid as that of the lady he met at the ball. I used all the arguments which you had used, but he brushed them aside as of no consequence, and somehow the case did not appear to be as clear as when you propounded your theory.” “Well, what then?” asked the girl. “Why, then I asked him to come up here at four o’clock and hear what an assistant of mine would say about the case.” “At four o’clock!” cried the girl in terror; “then he may be here at any moment.”