The fire chief came up to Mr. Bobbsey, who expressed his thanks for the quick work of the firemen.
"Have you any idea what started the fire, Mr. Bobbsey?" asked the chief. "Was the boathouse in use?"
"No," was the answer. "It had been closed for the winter some time ago—in fact as soon as the carpenters finished making the changes. No one was in it as far as I know."
"Then how do you account for this?" asked the chief, as he held out a box partly filled with cigarettes. "I picked these up in the living room," he went on, for the boathouse had one room carpeted, and fitted with chairs and tables, and electric lights where the family often spent evenings during Summer.
"You found those cigarettes in the living room of the boathouse?" asked Mr. Bobbsey.
"I did; and the question is who was smoking?" went on the chief. "In my opinion the end of a cigarette thrown aside, or perhaps a lighted match dropped in some corner, started this fire. Who was smoking?"
