so frightened over this!"

"Do? Don't you do anything!" cried Tom. "We'll fool these rascals
yet. If they got those papers they might release Mr. Damon, or
they might not--fearing he would cause their arrest later. But
we'll have him released anyhow, and we'll save what is left of
your fortune. Put those land papers in a safe-deposit box, and let
me do the rest. I'm going to catch those fellows!"

"But how, Tom? You don't know who they are. And a mere message
over a telephone won't give you a clue to where they are."

"Perhaps not an ordinary message," agreed Tom. "But I'm going to
try some of my new inventions. You said they told you they were
going to call again?"

"That's what they said, Tom."

"Well, when they do, I want to be here. I want to listen to that
message. If you will allow me, I'll take up my residence here for
a while, Mrs. Damon."

"Allow you? I'll be only too glad if you will, Tom. But I thought
you were going to try to get some clue from the drug store where
the mysterious message came from."

"I'll let Ned Newton do that. I want to stay here."

Tom telephoned to Ned to meet him at Mrs. Damon's house, and also
to bring with him certain things from the laboratory. And when Ned