For some time every thing went on well. Mr. Harrison had strictly forbidden them to have any fire in or near the play-room, and they were careful to obey him. But, alas! I must tell you what happened through the thoughtlessness of one of the boys. He was the youngest and smallest of them all. He had fired off the crackers he had taken out, and he ran into the play-room to get more. He held in his hand a piece of punk. All boys know that this is what they use to light their fireworks, as it burns very slowly, and lasts very long. The punk which the little fellow held was burning. He had forgotten to lay it down. He went to the seat where the fireworks were, and began to pull them about to find his crackers.