As Dave looked, he saw a corner of a distant fence fly apart.
"The cannon cracker!" gasped Phil.
"What could have made it go off?" asked Roger.
"Some sparks from this fire—or else it was lit when Phil took it out," answered Dave.
"What are you talking about?" asked Senator Morr, and when he had been told he shook his head and smiled, grimly.
"Well, I'm glad it didn't go off in the garage," he said. "But after this you must keep your explosives in a safer place. Jake, James, bring some buckets of water and put out that fire from the explosion. It isn't much, but we want no more sparks flying around here."
The water was brought, and soon every spark had been extinguished. Then the crowd went back to the garage, to make sure that no more fire lingered in that vicinity.