The Secret Adversary. Agatha Christie

her companion did not back her up. His eyes were fixed on Mr Carter, and his tone when he spoke held an unusual note of deference.

      ‘I dare say the little we know won’t be any good to you, sir. But such as it is, you’re welcome to it.’

      ‘Tommy!’ cried out Tuppence in surprise.

      Mr Carter slewed round in his chair. His eyes asked a question.

      Tommy nodded.

      ‘Yes, sir, I recognized you at once. Saw you in France when I was with the Intelligence. As soon as you came into the room, I knew—’

      Mr Carter held up his hand.

      ‘No names, please. I’m known as Mr Carter here. It’s my cousin’s house, by the way. She’s willing to lend it to me sometimes when it’s a case of working on strictly unofficial lines. Well, now,’—he looked from one to the other—‘who’s going to tell me the story?’

      ‘Fire ahead, Tuppence,’ directed Tommy. ‘It’s your yarn.’

      ‘Yes, little lady, out with it.’

      And obediently Tuppence did out with it, telling the whole story from the forming of the Young Adventurers, Ltd., downwards.

      Mr Carter listened in silence with a resumption of his tired manner. Now and then he passed his hand across his lips as though to hide a smile. When she had finished he nodded gravely.

      ‘Not much. But suggestive. Quite suggestive. If you’ll excuse me saying so, you’re a curious young couple. I don’t know—you might succeed where others have failed… I believe in luck, you know—always have…’

      He paused a moment and then went on.

      ‘Well, how about it? You’re out for adventure. How would you like to work for me? All quite unofficial, you know. Expenses paid, and a moderate screw?’

      Tuppence gazed at him, her lips parted, her eyes growing wider and wider.

      ‘What should we have to do?’ she breathed.

      Mr Carter smiled.

      ‘Just go on with what you’re doing now. Find Jane Finn.’

      ‘Yes, but—who is Jane Finn?’

      Mr Carter nodded gravely.

      ‘Yes, you’re entitled to know that, I think.’

      He leaned back in his chair, crossed his legs, brought the tips of his fingers together, and began in a low monotone:

      ‘Secret diplomacy (which, by the way, is nearly always bad policy!) does not concern you. It will be sufficient to say that in the early days of 1915 a certain document came into being. It was the draft of a secret agreement—treaty—call it what you like. It was drawn up ready for signature by the various representatives, and drawn up in America—at that time a neutral country. It was dispatched to England by a special messenger selected for that purpose, a young fellow called Danvers. It was hoped that the whole affair had been kept so secret that nothing would have leaked out. That kind of hope is usually disappointed. Somebody always talks!

      ‘Danvers sailed for England on the Lusitania. He carried the precious papers in an oilskin packet which he wore next his skin. It was on that particular voyage that the Lusitania was torpedoed and sunk. Danvers was among the list of those missing. Eventually his body was washed ashore, and identified beyond any possible doubt. But the oilskin packet was missing!

      ‘The question was, had it been taken from him, or had he himself passed it on into another’s keeping? There were a few incidents that strengthened the possibility of the latter theory. After the torpedo struck the ship, in the few moments during the launching of the boats, Danvers was seen speaking to a young American girl. No one actually saw him pass anything to her, but he might have done so. It seems to me quite likely that he entrusted the papers to this girl, believing that she, as a woman, had a greater chance of bringing them safely to shore.

      ‘But if so, where was the girl, and what had she done with the papers? By later advice from America it seemed likely that Danvers had been closely shadowed on the way over. Was this girl in league with his enemies? Or had she, in her turn, been shadowed and either tricked or forced into handing over the precious packet?

      ‘We set to work to trace her out. It proved unexpectedly difficult. Her name was Jane Finn, and it duly appeared among the list of the survivors, but the girl herself seemed to have vanished completely. Inquiries into her antecedents did little to help us. She was an orphan, and had been what we should call over here a pupil teacher in a small school out West. Her passport had been made out for Paris, where she was going to join the staff of a hospital. She had offered her services voluntarily, and after some correspondence they had been accepted. Having seen her name in the list of the saved from the Lusitania, the staff of the hospital were naturally very surprised at her not arriving to take up her billet, and at not hearing from her in any way.

      ‘Well, every effort was made to trace the young lady—but all in vain. We tracked her across Ireland, but nothing could be heard of her after she set foot in England. No use was made of the draft treaty—as might very easily have been done—and we therefore came to the conclusion that Danvers had, after all, destroyed it. The war entered on another phase, the diplomatic aspect changed accordingly, and the treaty was never redrafted. Rumours as to its existence were emphatically denied. The disappearance of Jane Finn was forgotten and the whole affair was lost in oblivion.’

      Mr Carter paused, and Tuppence broke in impatiently:

      ‘But why has it all cropped up again? The war’s over.’

      A hint of alertness came into Mr Carter’s manner.

      ‘Because it seemed that the papers were not destroyed after all, and that they might be resurrected today with a new and deadly significance.’

      Tuppence stared. Mr Carter nodded.

      ‘Yes, five years ago, that draft treaty was a weapon in our hands; today it is a weapon against us. It was a gigantic blunder. If its terms were made public, it would mean disaster… It might possibly bring about another war—not with Germany this time! That is an extreme possibility, and I do not believe in its likelihood myself, but that document undoubtedly implicates a number of our statesmen whom we cannot afford to have discredited in any way at the present moment. As a party cry for Labour it would be irresistible, and a Labour Government at this juncture would, in my opinion, be a grave disability for British trade, but that is a mere nothing to the real danger.’

      He paused, and then said quietly:

      ‘You may perhaps have heard or read that there is Bolshevist influence at work behind the present labour unrest?’

      Tuppence nodded.

      ‘That is the truth, Bolshevist gold is pouring into this country for the specific purpose of procuring a Revolution. And there is a certain man, a man whose real name is unknown to us, who is working in the dark for his own ends. The Bolshevists are behind the labour unrest—but this man is behind the Bolshevists. Who is he? We do not know. He is always spoken of by the unassuming title of “Mr Brown.” But one thing is certain, he is the master criminal of this age. He controls a marvellous organization. Most of the peace propaganda during the war was originated and financed by him. His spies are everywhere.’

      ‘A naturalized German?’ asked Tommy.

      ‘On the contrary, I have every reason to believe he is an Englishman. He was pro-German, as he would have been pro-Boer. What he seeks to attain we do not know—probably supreme power for himself, of a kind unique in history. We have no clue as to his real personality. It is reported that even his own followers are ignorant of it. Where we have come across his tracks, he has always played a secondary part. Somebody else assumes the chief rôle. But afterwards we always find that there had been some nonentity, a servant or a clerk, who had remained in the background unnoticed, and that the elusive Mr Brown has escaped us once more.’

      ‘Oh!’