Count Rouvaloff looked at him for some moments in amazement, and then seeing that he was quite serious, wrote an address on a piece of paper, initialled it, and handed it to him across the table.

'Scotland Yard would give a good deal to know this address, my dear fellow.'

'They shan't have it,' cried Lord Arthur, laughing; and after shaking the young Russian warmly by the hand he ran downstairs, examined the paper, and told the coachman to drive to Soho Square.

There he dismissed him, and strolled down Greek Street, till he came to a place called Bayle's Court. He passed under the archway, and found himself in a curious cul-de-sac, that was apparently occupied by a French Laundry, as a perfect network of clothes-lines was stretched across from house to house, and there was a flutter of white linen in the morning air. He walked to the end, and knocked at a little green house. After some delay, during which every window in the court became a blurred mass of peering faces, the door was opened by a rather rough-looking foreigner, who asked him in very bad English what his business was. Lord Arthur handed him the paper Count Rouvaloff had given him. When the man saw it he bowed, and invited Lord Arthur into a very shabby front parlour on the ground-floor, and in a few moments Herr Winckelkopf, as he was called in England, bustled into the room, with a very wine-stained napkin round his neck, and a fork in his left hand.

'Count Rouvaloff has given me an introduction to you, said Lord Arthur, bowing, 'and I am anxious to have a short interview with you on a matter of business. My name is Smith, Mr. Robert Smith, and I want you to supply me with an explosive clock.'

'Charmed to meet you, Lord Arthur,' said the genial little German laughing. 'Don't look so alarmed, it is my duty to know everybody, and I remember seeing you one evening at Lady Windermere's. I hope her ladyship is quite well. Do you mind sitting with me while I finish my breakfast? There is an excellent pate, and my friends are kind enough to say that my Rhine wine is better than any they get at the German Embassy,' and before Lord Arthur had got over his surprise at being recognised, he found himself seated in the back-room, sipping the most delicious Marcobrunner out of a pale yellow hock-glass marked with the Imperial monogram, and chatting in the friendliest manner possible to the famous conspirator.