“Have your own way,” spoke Jerry with a smile. “At any rate we’ll see what the detective has to say. Of course many persons may have twenty dollar gold pieces, but perhaps these men also passed big bills, and there were a number of them taken from the bank vault.”

Meanwhile the Comet was making good time in the direction of Newton.

They sighted the church spires of that place shortly after dinner, and their descent into that quiet city was a great sensation. Every boy, nearly all the girls, and a good proportion of the men and women were on hand when our heroes came down, for an airship was a rarity in that part of the country.

“And yet, if the bank robbers were here in one, spending money, I shouldn’t think the folks would be so curious about ours,” remarked Bob.

“Maybe the burglars left their craft somewhere out in the woods, and came in on foot,” suggested Ned.

“We’ll find out from Detective Halwell,” decided Jerry.

“Where will we locate him?” asked Ned.

“I told President Carter to wire him that we’d call on him at his hotel—the Mansion House,” went on the tall lad. “As soon as we fix things here so the boys won’t meddle, we’ll go and——”

“I’ll stay here and guard the craft,” interrupted the professor.

“Are you sure you won’t go off after the flying frog, or something like that?” asked Jerry half jokingly.