e made any arrangements to detain you. Catch the
midnight train to Boston and embark on the Saxonia. There will be
a cable for you at Liverpool. But the moment you leave me send this
despatch."

Felix nodded and put the crumpled-up piece of paper in his pocket.
The two men passed on. Duson took off his hat, but his fingers were
trembling. The carriage door was opened and a tall, spare man descended.

"This is Mr. Sabin?" he remarked.

Mr. Sabin bowed.

"That is my name," he admitted, "by which I have been generally called
in this democratic country. What is your business with me?"

"I rather guess that you're my prisoner," the man answered. "If you'll
step right in here we can get away quietly."

"The suggestion," Mr. Sabin remarked, "sounds inviting, but I am
somewhat pressed for time. Might I inquire the nature of the charge you
have against me?"

"They'll tell you that at the office," the man answered. "Get in,
please."

Mr. Sabin looked around for Felix, but he had disappeared. He took out
his cigarette-case.

"You will permit me first to light a cigarette," he remarked.

"All right! Only look sharp."

Mr. Sabin kept silence in the carriage. The drive was a long one. When
they descended he looked up at Duson, who sat upon the box.

"Duson," he said, and his voice, though low, was terrible, "I see that I
can be mistaken in men. You are a villain."

The man sprung to his feet, hat in hand. His face was wrung with
emotion.

"Your Grace," he said, "it is true that I betrayed you. But I did it
without reward. I am a ruined man. I did it because the orders which
came to me were such as I dare not disobey. Here are your keys, your
Grace, and money."

Mr. Sabin looked at him steadily.

"You, too, Duson?"

"I too, alas, your Grace!"

Mr. Sabin considered for a moment.

"Duson," he said, "I retain you in my service. Take my luggage on board
the Campania to-morrow afternoon, and pay the bill at the hotel. I shall
join you on the boat."

Duson was amazed. The man who was standing by laughed.

"If you take my advice, sir," he remarked, "you'll order your clothes
to be sent here. I've a kind of fancy the Campania will sail without you
to-morrow."

"You have my orders, Duson," Mr. Sabin said. "You can rely upon seeing
me."

The detective led the way into the building, and opened the door leading
into a large, barely furnished office.

"Chief's gone home for the night, I guess," he remarked. "We ca