wrong. I was not infringing. In fact, though the motor they have is
somewhat like mine, there is one big difference--theirs does not
work, while mine does. Their patents are worthless."

"Then what do you think is their object?"

"I think they want to get control of my invention of the turbine
motor, Tom. That is what has been worrying me lately. I know these
men to be unscrupulous, and, with plenty of money, they may make
trouble for me."

"But can't you fight them in the courts?"

"Yes, I could do that. It is not as if I was a poor man, but I do
not like lawsuits. I want to live quietly and invent things. I
dislike litigation. However, if they force it on me I will fight!"
exclaimed Mr. Swift determinedly.

"Do you think this man was one of the crowd of financiers?" asked
Tom.

"It would be hard to say. I did not like his actions, and the fact
that he sneaked in here, as if he was trying to get possession of
some of my models or plans, makes it suspicious."

"It certainly does," agreed Tom. "Now, if we only knew his name we
could--"

He suddenly paused in his remark and sprang forward. He picked up an
envelope that had dropped where the stranger had been standing.