“We’ll stop at the bureau of identification and see if we can learn anything about the fellows who tried to kidnap you,” said the federal agent.

They dropped down a floor and entered a long room where a number of clerks were working at filing cases.

Merritt Hughes walked up to a slender chap busy at a flat-topped desk.

“Look alive, Jimmy,” he said. “There’s business at hand.”

Jimmy Adel, chief of the filing division, looked up.

“Hello, sleuth. Who are you trailing this morning?”

“One red head and one fellow with a scar on his forehead.”

“Now isn’t that a lot of help! Don’t you know that there are a good many red heads and a whole lot of people with scars on their foreheads? Just be a little more exact, please.” But he grinned as he chided the federal agent.

“Jimmy, this is my nephew, Bob Houston. He’s detailed to help me on a new case that’s breaking pretty fast.”

“The radio case?”