can't," said Bob. "But hurry up and tell us what's eating you."

"I just saw the fellows that were in that motor boat when it ran us down!"
exclaimed Larry.

"You did?" cried the radio boys in chorus. "Did you try to stop them?"

"Of course I did," replied Larry. "But they evidently recognized me, for
they gave me one look, and then started off at top speed. I tried to run
after them, but I'm too blamed crippled yet to do much speeding, and of
course they got away clean. If you fellows had come along three minutes
sooner, we could have caught them, I think."

"They can't have got very far yet, then," said Bob. "Which way did they
go? It may not be too late to catch them even now."

"They went around that corner," answered Larry, pointing with his crutch.
"I got there as soon as I could, but by the time I arrived there was no
sign of them."

"I'm afraid we haven't much chance to catch them now, but we might as well
try, anyway," said Bob. "Judging from the direction they took, it looks as
though they might have headed for the station. Suppose we each take a
different street, and work down to the station, keeping our eyes open as
we go along? Even if we don't succeed in catching them, we may find
somebody who knows them and can give us some information."

"Sounds good to me," agreed Joe, briefly, and the others also assented to
Bob's plan.

"I'll go straight down High Street, then," said Bob, decisively. "You take
Jerome Avenue, Joe. You take Van Ness Avenue, Herb. And you take Southern
Boulevard, Jimmy. They all run together near the station, and we can meet
there. So-long, Larry. Whether we learn anything or not, we'll come back
to the hotel and let you know all about it."

"All right, then, I'll be waiting for you," said Larry, with a wave of
his hand. "I only wish that I could help you, but I'm a lame horse yet.
Good luck, anyway."

The radio boys set out at top speed, each one hunting high and low along
the street assigned to him, and asking questions of every one he met. But
the strangers seemed to have vanished into thin air, for, hunt as they
would, the boys could find no trace of them. At the railroad station they
learned that a train had left for New York only a few minutes before, but
the ticket agent said he did not remember selling tickets to any men such
as the boys described.

"That doesn't prove anything, though," he said, as he noted their
disappointment. "I sell so many tickets here during th