All turned toward Jack.

“It wouldn’t do, of course, to make a raid and capture the plane and their radio plant?” Jack asked.

Captain Folsom shook his head.

“No,” he said. “That wouldn’t do, for a number of reasons. In the first place, as I said, we have no evidence that would stand in court that Higginbotham or anybody else connected with the matter is a law-breaker. It may even be that whoever is behind the plot has obtained a government license 75 for the operation of the radio station. The power of these bootleggers reaches far, and goes into high places. Therefore, we cannot afford to make an open attack.

“But, in the second place,” he added, leaning forward and uncrossing his legs; “what good would that do? It would only warn the Man Higher Up that we were on his track. We don’t want him warned. We want to close in on him. For I do believe you boys have given us a lead that will enable us to do so. At the same time—we do want to put that plane out of commission.”

“Look here,” said Jack, suddenly. “It’s strange, if with our airplane and our own radio plant, one of the most powerful private plants in the world, certainly in America, it’s strange, I say, if with this equipment we are not enabled to work out some method for accomplishing your ends.

“But, let’s think it over. Let’s sleep on it. I have the glimmerings of an idea now. But I’m tired. It’s been a hard day. Suppose we all turn in and talk it over to-morrow morning.”

“Good idea, Jack,” declared Bob, yawning unrestrainedly. “I’m tired, too.”

“Very good,” said Captain Folsom. “Meanwhile, I shall have to take advantage of your kind offer to put me up for the night.” 76

“No trouble at all,” said Jack, heartily. “Come along. Night, fellows. Come over to my house after breakfast. Night.”