"No. It's the other affair; about the----" I broke off, and his eyes fastened on mine as if to read in them the rest of the sentence. "But it's no affair of mine," I added with a shrug. "Why should I bother myself? But don't forget my warning."

"Do you mean we have been betrayed? That there is a spy among us?"

I turned grave for an instant. "I name no names, Ziegler; but some one gave you away the other day when you failed."

The effect of this second shot was startling. "G.o.d of my fathers, if I thought it was von Felsen I would----." He clenched his hands in rage.

I was almost as excited as he was, but I took care he should not see it.

Von Felsen was mixed up in these Polish schemes; and if I could get at the truth, I should have him in the hollow of my hand. "It wasn't von Felsen," I said to rea.s.sure him. "He's too deep in, and too much in your power to chatter. You know that. And I shan't give you away. I have too much sympathy with your cause. But it wasn't von Felsen. I a.s.sure you that, although I bear him no good-will."

I had succeeded in convincing him that I knew a lot; and he had not a suspicion that I had been merely guessing on the strength of the hints he himself had dropped. He sat a long time thinking, and was greatly disturbed.

"You have startled me, Herr Bastable; but I know you sympathize with the cause. I know that from what you have written in your paper. But why do you bear ill-will to Hugo?"

"Hugo," eh? He spoke or thought of him by his Christian name. The inference was easy. Von Felsen was playing a double matrimonial game.

"When may one offer congratulations, Ziegler?" I asked with a smile. I could afford to smile, for I was winning, hands down.

"It is Hagar's wish. She loves him; and she will be a countess, too."

"Two excellent reasons. And meanwhile you find him useful to get----"

Again I broke off the sentence and finished with a knowing smile.

"You are the devil, Herr Bastable," he replied with a laugh.

"Well, it is at least useful to be able to get inside information when very important papers are in the hands of an Imperial messenger, eh?"

"I don't know what you mean by that," he answered, wagging his head.

I affected to take offence. "It's enough for my purposes that I do. Is it worth while to try and fool me? I don't take to it easily, you know."

"I am not trying it," he protested.

"Then don't pretend that von Felsen isn't in all this with you. I know too much. And now, look here, I'll tell you the real object of this visit. Von Felsen is trying a fool's game with me, and it has to stop.

I know he daren't go against you, Ziegler, and you daren't go against me; even if your friendship for me were less than it is."

My tone alarmed him. "What is he doing? I have influence with him, of course."

"What he is doing may turn out to touch you pretty closely; but never mind what it is for the present. Give me a line to him--that I am your friend and that anything he does against me is the same as if done against you."

"Of course I will," he consented. He wrote a few lines quickly and handed them to me.

MY DEAR HUGO,--

"Herr Bastable is a great friend of mine. Any service to him is a service to me; and the reverse.

"EPHRAIM ZIEGLER."

"That will do. And now a last word. Not a syllable to him or any one of what has pa.s.sed between us to-day."

"I give you my honour, my dear Herr Bastable," he agreed readily.

"I shall hear if you talk, mind; and if I do--well I shall take it as a sign that I am to talk on my side. And I shall." I left him with that and walked out of his office on excellent terms with myself.

I was convinced that von Felsen was so tight in the toils that the letter I had obtained would frighten him consumedly. But I little thought of the grim results which were to flow from that afternoon's conversation.

I hurried home as fast as I could, and it was fortunate that I did so.

As my cab drew up at the house, I found von Felsen and Dormund at the open door. I saw the move at once, without von Felsen's smug explanation. "Herr Dormund has a question to put to your sister, Bastable, about Fraulein Althea."

"I trust I am not intruding, Herr Bastable," said Dormund apologetically; "but Herr von Felsen tells me Miss Bastable has expressed the wish to give me important information."

"Von Felsen is wrong. My sister does not know any more than I do; but come into my den here and I'll see if she is at home," I replied indifferently.

"Your servant has already told us she is," put in von Felsen.

"Then I'll go and fetch her"; and I handed out my cigars and left them.

It was a tight corner; but of course Dormund must not see Bessie. It would at once reveal the trick I had played him at the station. Yet to deny her after Ellen's admission that she was at home would be the tamest subterfuge which he would see through in a second.

There was only one course: to call von Felsen out, face him with Ziegler's letter and make him get rid of Dormund. I was about to do this when another blow fell.

Ellen came running up to me, white of face and trembling.

"There are a number of police at the door, sir."

A loud knock at that instant confirmed her words.

It was a pretty fix in all truth, and I stood hesitating in perplexity what to do, when the knocking was repeated more insistently.

Obviously there was nothing for it but to admit the police, so I sent Ellen downstairs, and prepared to meet the crisis with as bold a face as possible.

CHAPTER V

ALTHEA'S STORY

I opened the door and found three men there, two of them in police uniform.

"Herr Dormund is here?" asked one of them.

"Yes," I said, and they entered.

"We must see him at once."

"Certainly." I went to the room where Dormund sat with von Felsen.