'I wish a word with you,' I said. 'Follow me.'
I took him into the lock-keeper's house and closed the door.
'Where are you going?'
'To Havre.'
'Where did you come from?'
'Paris.'
'From what quay?'
'From the Pont de Neuilly.'
'When did you leave there?'
'At five minutes to four o'clock this afternoon.'
'Yesterday afternoon, you mean?'
'Yesterday afternoon.'
'Who engaged you to make this voyage?'
'An American; I do not know his name.'
'He paid you well, I suppose?'
'He paid me what I asked.'
'Have you received the money?'
'Yes, sir.'
'I may inform you, captain, that I am Eugène Valmont, chief detective of the French Government, and that all the police of France at this moment are under my control. I ask you, therefore, to be careful of your answers. You were ordered by a policeman at Denouval to return. Why did you not do so?'
'The lock-keeper ordered me to return, but as he had no right to order me, I went on.'
'You knew very well it was the police who ordered you, and you ignored the command. Again I ask you why you did so.'
'I did not know it was the police.'
'I thought you would say that. You knew very well, but were paid to take the risk, and it is likely to cost you dear. You had two passengers aboard?'
'Yes, sir.'
'Did you put them ashore between here and Denouval?'
'No, sir; but one of them went overboard, and we couldn't find him again.'
'Which one?'
'The short man.'
'Then the American is still aboard?'
'What American, sir?'
'Captain, you must not trifle with me. The man who engaged you is still aboard?'
'Oh, no, sir; he has never been aboard.'
'Do you mean to tell me that the second man who came on your launch at the Pont de Neuilly is not the American who engaged you?'
'No, sir; the American was a smooth-faced man; this man wore a black beard.'
'Yes, a false beard.'
'I did not know that, sir. I understood from the American that I was to take but one passenger. One came aboard with a small box in his hand; the other with a small bag. Each declared himself to be the passenger in question. I did not know what to do, so I left Paris with both of them on board.'
'Then the tall man with the black beard is still with you?'
'Yes, sir.'
'Well, captain, is there anything else you have to tell me? I think you will find it better in the end to make a clean breast of it.'
The captain hesitated, turning his cap about in his hands for a few moments, then he said,—
'I am not sure that the first passenger went overboard of his own accord. When the police hailed us at Denouval—'
'Ah, you knew it was the police, then?'
'I was afraid after I left it might have been. You see, when the bargain was made with me the American said that if I reached Havre at a certain time a thousand francs extra would be paid to me, so I was anxious to get along as quickly as I could. I told him it was dangerous to navigate the Seine at night, but he paid me well for attempting it. After the policeman called to us at Denouval the man with the small box became very much excited, and asked me to put him ashore, which I refused to do. The tall man appeared to be watching him, never letting him get far away. When I heard the splash in the water I ran aft, and I saw the tall man putting the box which the other had held into his handbag, although I said nothing of it at the time. We cruised back and forward about the spot where the other man had gone overboard, but saw nothing more of him. Then I came on to Meulan, intending to give information about what I had seen. That is all I know of the matter, sir.'
'Was the man who had the jewels a Frenchman?'
'What jewels, sir?'
'The man with the small box.'
'Oh, yes, sir; he was French.'
'You have hinted that the foreigner threw him overboard. What grounds have you for such a belief if you did not see the struggle?'
'The night is very dark, sir, and I did not see what happened. I was at the wheel in the forward part of the launch, with my back turned to these two. I heard a scream, then a splash. If the man had jumped overboard as the other said he did, he would not have screamed. Besides, as I told you, when I ran aft I saw the foreigner put the little box in his handbag, which he shut up quickly as if he did not wish me to notice.'
'Very good, captain. If you have told the truth it will go easier with you in the investigation that is to follow.'
I now turned the captain over to one of my men, and ordered in the foreigner with his bag and bogus black whiskers. Before questioning him I ordered him to open the handbag, which he did with evident reluctance. It was filled with false whiskers, false moustaches, and various bottles, but on top of them all lay the jewel case. I raised the lid and displayed that accursed necklace. I looked up at the man, who stood there calmly enough, saying nothing in spite of the overwhelming evidence against him.
'Will you oblige me by removing your false beard?'
He did so at once, throwing it into the open bag. I knew the moment I saw him that he was not the American, and thus my theory had broken down, in one very important part at least. Informing him who I was, and cautioning him to speak the truth, I asked how he came in possession of the jewels.
'Am I under arrest?' he asked.
'But certainly,' I replied.
'Of what am I accused?'
'You are accused, in the first place, of being in possession of property which does not belong to you.'
'I plead guilty to that. What in the second place?'
'In the second place, you may find yourself accused of murder.'
'I am innocent of the second charge. The man jumped overboard.'
'If that is true, why did he scream as he went over?'
'Because, too late to recover his balance, I seized this box and held it.'
'He was in rightful possession of the box; the owner gave it to him.'
'I admit that; I saw the owner give it to him.'
'Then why should he jump overboard?'