This time it was Hiram Nelson.

He was almost as abashed as Merritt had been when he found that his excitement had carried him into what seemed a family conference.
"It's all right, Hiram.

Come right in," said Mr.Blake cheerfully.
"Come on out with your news, for I can see you can hardly keep it to yourself." "It's going round the town like wildfire!" responded the panting boy.
The others nodded.

"I see you know it already," he went on.

"Well, I think I've got a clue." "You have! Come on, let's hear it quick," cried Rob.
"Well, I was up late with Paul Perkins last night, talking over the aeroplane model competition, and didn't start home till about midnight.
As I was approaching the armory I thought I saw a light in one of the windows.