If they give us time we must have them.”

“But how can we find where this house lies?”

“Well, if our conjecture is correct and the girl's name is or was Sophy Kratides, we should have no difficulty in tracing her. That must be our main hope, for the brother is, of course, a complete stranger. It is clear that some time has elapsed since this Harold established these relations with the girl -- some weeks at any rate -- since the brother in Greece has had time to hear of it and come across. If they have been living in the same place during this time, it is probable that we shall have some answer to Mycroft's advertisement.”

We had reached our house in Baker Street while we had been talking. Holmes ascended the stair first, and as he opened the door of our room he gave a start of surprise. Looking over his shoulder, I was equally astonished. His brother Mycroft was sitting smoking in the armchair.

“Come in, Sherlock! Come in, sir,” said he blandly, smiling at our surprised faces. “You don't expect such energy from me do you, Sherlock? But somehow this case attracts me.”

“How did you get here?”

I passed you in a hansom.”

“There has been some new development?”

“I had an answer to my advertisement.”

“Ah!”

Yes, it came within a few minutes of your leaving.”

“And to what effect?”

Mycroft Holmes took out a sheet of paper.

“Here it is,” said he, written with a J pen on royal cream paper by a middle-aged man with a weak constitution.

“Sir

[ he says ]:” In answer to your advertisement of to-day's date, I beg to inform you that I know the young lady in question very well. If you should care to call upon me I could give you some particulars as to her painful history. She is living at present at The Myrtles, Beckenham.

“Yours faithfully,” J. DAVENPORT.

“He writes from Lower Brixton,” said Mycroft Holmes. “Do you not think that we might drive to him now, Sherlock, and learn these particulars?”

“My dear Mycroft, the brother's life is more valuable than the sister's story. I think we should call at Scotland Yard for Inspector Gregson and go straight out to Beckenham. We know that a man is being done to death, and every hour may be vital.”

“Better pick up Mr. Melas on our way,” I suggested. “We may need an interpreter.”

“Excellent,” said Sherlock Holmes. Send the boy for a four-wheeler, and we shall be off at once.” He opened the table-drawer as he spoke, and I noticed that he slipped his revolver into his pocket. “Yes,” said he in answer to my glance, “I should say, from what we have heard, that we are dealing with a particularly dangerous gang.”

It was almost dark before we found ourselves in Pall Mall, at the rooms of Mr. Melas. A gentleman had just called for him, and he was gone.

“Can you tell me where?” asked Mycroft Holmes.

“I don't know, sir,” answered the woman who had opened the door; “I only know that he drove away with the gentleman in a carriage.”

“Did the gentleman give a name?”

No, sir.”

“He wasn't a tall, handsome, dark young man?”

“Oh, no, sir. He was a little gentleman, with glasses, thin in the face, but very pleasant in his ways, for he was laughing all the time that he was talking.”

“Come along!” cried Sherlock Holmes abruptly. “This grows serious,” he observed as we drove to Scotland Yard. “These men have got hold of Melas again.