“How far is it to Rubio?” Bob asked the intelligence officer.

“I’m not sure that I even know what part of Maryland it’s in, but I believe if we go by plane, we should be there in an hour.”

“Then we’ll go by plane,” decided Bob.

Just how he could obtain a plane was a question he couldn’t have answered at the moment, but he was determined to make the trip with the least possible loss of time for he felt that either in Rubio or near it he would find the solution to the mystery.

Chapter XXIX
INTO THE AIR

Bob and Lieutenant Gibbons left the other federal agents at the apartment building to help the superintendent clean up the litter of paper they had strewn about the basement while they hastened back to the Department of Justice building.

Waldo Edgar himself was waiting for their report and he smiled contentedly when he heard it.

“You’re on the right track, Bob. Follow it hard and don’t let a single trick get away from you. How are you going to Rubio?”

Bob turned to a wall map which showed the entire state of Maryland. As Lieutenant Gibbons had surmised, Rubio was on the east shore, a tiny dot of a town, well isolated from any of the other shore villages.

“That’s a desolate stretch,” said the chief. “You may need help in rounding up this gang.”