“Excellent, Lestrade, excellent!” he cried. “But I didn’t quite follow your explanation of the destruction of the busts.”

“The busts! You never can get those busts out of your head. After all, that is nothing; petty larceny, six months at the most. It is the murder that we are really investigating, and I tell you that I am gathering all the threads into my hands.”

“And the next stage?”

“Is a very simple one. I shall go down with Hill to the Italian Quarter, find the man whose photograph we have got, and arrest him on the charge of murder. Will you come with us?”

“I think not. I fancy we can attain our end in a simpler way. I can’t say for certain, because it all depends - well, it all depends upon a factor which is completely outside our control. But I have great hopes - in fact, the betting is exactly two to one - that if you will come with us to-night I shall be able to help you to lay him by the heels.”

“In the Italian Quarter?”

“No, I fancy Chiswick is an address which is more likely to find him. If you will come with me to Chiswick to-night, Lestrade, I’ll promise to go to the Italian Quarter with you to-morrow, and no harm will be done by the delay. And now I think that a few hours’ sleep would do us all good, for I do not propose to leave before eleven o’clock, and it is unlikely that we shall be back before morning. You’ll dine with us, Lestrade, and then you are welcome to the sofa until it is time for us to start. In the meantime, Watson, I should be glad if you would ring for an express messenger, for I have a letter to send and it is important that it should go at once.”

Holmes spent the evening in rummaging among the files of the old daily papers with which one of our lumber-rooms was packed. When at last he descended, it was with triumph in his eyes, but he said nothing to either of us as to the result of his researches. For my own part, I had followed step by step the methods by which he had traced the various windings of this complex case, and, though I could not yet perceive the goal which we would reach, I understood clearly that Holmes expected this grotesque criminal to make an attempt upon the two remaining busts, one of which, I remembered, was at Chiswick. No doubt the object of our journey was to catch him in the very act, and I could not but admire the cunning with which my friend had inserted a wrong clue in the evening paper, so as to give the fellow the idea that he could continue his scheme with impunity. I was not surprised when Holmes suggested that I should take my revolver with me. He had himself picked up the loaded hunting-crop, which was his favourite weapon.

A four-wheeler was at the door at eleven, and in it we drove to a spot at the other side of Hammersmith Bridge. Here the cabman was directed to wait. A short walk brought us to a secluded road fringed with pleasant houses, each standing in its own grounds. In the light of a street lamp we read “Laburnum Villa” upon the gate-post of one of them. The occupants had evidently retired to rest, for all was dark save for a fanlight over the hall door, which shed a single blurred circle on to the garden path. The wooden fence which separated the grounds from the road threw a dense black shadow upon the inner side, and here it was that we crouched.

“I fear that you’ll have a long wait,” Holmes whispered. “We may thank our stars that it is not raining. I don’t think we can even venture to smoke to pass the time. However, it’s a two to one chance that we get something to pay us for our trouble.”