they belong. `But that's a detail. I talked to you of this business because it's your government that grumbles most at our police. You see that we are not so bad. I wanted particularly to tell you of our success.'

`I'm sure I'm very grateful,' muttered Mr Vladimir through his teeth.

`We can put our finger on every anarchist here,' went on the Assistant Commissioner, as though he were quoting Chief Inspector Heat. `All that's wanted now is to do away with the agent provocateur to make everything safe.'

Mr Vladimir held up his hand to a passing hansom.

`You're not going in here,' remarked the Assistant Commissioner, looking at a building of noble proportions and hospitable aspect, with the light of a great hall falling through its glass doors on a broad flight of steps.

But Mr Vladimir, sitting, stony-eyed, inside the hansom, drove off without a word.

The Assistant Commissioner himself did not turn into the noble building. It was the Explorers' Club. The thought passed through his mind that Mr Vladimir, honorary member, would not be seen very often there in the future. He looked at his watch. It was only half past ten. He had had a very full evening.