“What you expect of me and what you get will be entirely different propositions,” said Meadows unpleasantly. “Now come across, Oberzohn! We know why you want this girl—the whole plot has been blown. You think you’ll prevent her from making a claim on the Portuguese Government for the renewal of a concession granted in June, 1912, to her father.”

If Dr. Oberzohn was shocked to learn that his secret was out, he did not show it by his face. Not a muscle moved.

“Of such matters I know nothing. It is a fantasy, a story of fairies. Yet it must be true, Mr. Inspector Meadows, if you say it. No: I think you are deceived by the criminals of Curzon Street, W. Men of blood and murder, with records that are infamous. You desire to search my house? It is your privilege.” He waved his hand. “I do not ask you for the ticket of search. From basement to attic the house is yours.”

He was not surprised when Meadows took him at his word, and, going out into the hall, summoned his assistants. They visited each room separately, the old cook and the half-witted Danish girl accepting this visitation as a normal occurrence: they had every excuse to do so, for this was the second time in a fortnight that the house had been visited by the police.

“Now I’ll take a look at your room, if you don’t mind,” said Meadows.

His quick eyes caught sight of the box ottoman against the wall, and the fact that the doctor was sitting thereon added to his suspicions.

“I will look in here, if you please,” he said.

Oberzohn rose and the detective lifted the lid. It was empty. The ottoman had been placed against the wall, at the bottom of which was a deep recess. Gurther had long since rolled through the false back.

“You see—nothing,” said Oberzohn. “Now perhaps you would like to search my factory? Perhaps amongst the rafters and the burnt girders I may conceal a something. Or the barge in my slipway? Who knows what I may place amongst the rats?”

“You’re almost clever,” said Meadows, “and I don’t profess to be a match for you. But there are three men in this town who are! I’ll be frank with you, Oberzohn. I want to put you where I can give you a fair trial, in accordance with the law of this country, and I shall resist, to the best of my ability, any man taking the law into his own hands. But whether you’re innocent or guilty, I wouldn’t stand in your shoes for all the money in Angola!”