“So he got mad,” continued Chet, “and went off by himself. But going through Laurel Street he burst into flames again, so to speak, and if it hadn’t been that he was right near the fire station, I guess we’d have had a bigger conflagration at that end of the town than there was in Mr. Sharp’s office.”

“But I don’t understand!” cried Laura, puzzled.

“Neither did the fireman, who turned a chemical extinguisher on Pretty Sweet and messed him all up again. It was a serious matter to Pretty, I tell you. For this time the tails of his coat were burned off, as well as a portion of his nether garments. Why, he wasn’t fit to be seen!” roared Chet. “The firemen were for sending him home in a barrel; but Pretty wouldn’t have it. He sent for a cab and paid a dollar to get home.”

“But what made the fire? What did you boys do to him?” cried Jess.

“Nothing at all. We never touched him,” declared Lance Darby. “But when we told Professor Dimp, on Monday, when he inquired about the absence of Sweet, he seemed to suspect what had caused the fire. And he laughed, too.”

“Do tell us what it was?” cried Laura.

“Why, it must have been a piece of phosphorus he picked up and put in his pocket. Dimple says it is very active chemically, and when united with oxygen, even at an ordinary temperature, emits a faint glow as if it were gold. It got in its fine work on Pretty Sweet, however, and they say he’s got a blister on him as big as your hat!” concluded Chet.

The girls could not fail to be amused at this ridiculous adventure of the school exquisite. No other boy of their acquaintance was so dudish or comic in dress and manner.

“You know what Bobby did to Purt at Hester Grimes’s party last winter, don’t you?” said Jess, recovering from her paroxysm of laughter.

“The first time he wore his tall hat, you mean?” demanded Chet.