"Did they try to blow ye up, too?" asked Mr. Hertford. "What in th' name of Tunket was that blue light, and that explosion? I heard it an' saw it way over to my house."

"So did I," remarked Mr. Mason, and several others said the same thing. "We thought a meteor had fallen," he continued, "and we got together to make an investigation."

"It's a good thing for me you did," admitted Tom, "or I might have had to stay here all night."

"But was it a meteor?" insisted Mr. Hertford.

"No," replied the lad, "I did it."

"You?"

"Yes. You see after they tied me I found I could get one hand free. I reached in my pocket for my knife, but instead of it I managed to get hold of a package of powder I had."

"Gunpowder?" asked Mr. Mason.

"No, a chemical powder I use in an electrical battery. The powder explodes in fire, and makes quite a blue flash, and a lot of smoke, but it isn't very dangerous, otherwise I wouldn't have used it. When the boys were some distance away from the fire, I threw the powder in the blaze. It went off in a moment, and—"

"I guess they run some; didn't they?" asked Mr. Mason with a laugh.