. workers in the country right here in your mill. Some of them
aren't so bad--hot air and nothing else. But this fellow's a fanatic.
Which is the same as saying he's crazy."

"Who is he?"

"Name's Rudolph Klein. He's a sort of relation to the chap that got out.
Old man's been sore on him, but I understand he's hanging around the
Klein place again."

Clayton considered.

"I don't remember him. Of course, I can't keep track of the men. We'll
get rid of him."

Mr. Dunbar eyed him.

"That's the best thing you can think of?"

"I don't want him round, do I?"

"Nine of you men out of ten say that. You'd turn him loose and so warn
him. Not only that, but he'll be off on his devil's work somewhere.
Perhaps here. Perhaps elsewhere. And we want him where we can find him.
See here, Mr. Spencer, d'you ever hear of counter-espionage?"

Clayton never had, but the term explained itself.

"Set a spy to watch a spy," said Dunbar. "Let him think he's going on
fine. Find his confederates. Let them get ready to spring something. And
then--get them. Remember," he added with sarcasm, "we're still neutral.
You can't lock a man up because he goes around yelling 'Down with
capital!' The whole country is ready to yell it with him. And, even if
you find him with a bomb under his coat, labeled 'made in Germany,' it's
hard to link Germans up with the thing. He can say that he always buys
his bombs in Germany. That they make the best bombs in the world. That
he likes the way they pack 'em, and their polite trade methods."

Clayton listened, thinking hard.

"We have a daughter of Klein's here. She is my son's secretary."

Dunbar glanced at him quickly, but his eyes were on the window.

"I know that."

"Think I should get rid of her?"

Dunbar hesitated. He liked Clayton Spencer, and it was his business just
then to know something about the Kleins. It would be a good thing for
Clayton Spencer's boy if they got rid of the girl.

On the other hand, to keep her there and watch her was certainly a
bigger thing. If she stayed there might be trouble, but it would concern
the boy only. If she left, and if she was one link in the chain to
snare Rudolph, there might be a disaster costing many lives. He made his
decision quickly.

"Keep her, by all means," he said. "And don't tell Mr. Graham anything.
He's young, and he'd be likely to show something. I suppose she gets
considerable data where she is?"

"Only of the one department. But tha