"A what?" asked Stella.

"A 'rent rag.'"

"Who tore it?" asked Stella innocently.

At this the boys laughed loud and long, then apologized when they saw Stella's embarrassment.

"It ain't tore yet," said Bud, "but it's lierble ter be before ther rosy dawn."

"What are you talking about?" said Stella impatiently. "I never saw such provoking boys. You say such strange things, then cackle over it as though there was a joke in it, which nobody seems to see except yourself."

"A 'rent rag' is a—'rent rag,'" said Kit, trying to explain.

"That sounds as sensible as the conundrum, 'Why is a hen?'" said Stella. "Must I ask the question and get caught? All right, here goes. What is a 'rent rag'? Now, don't tell me, some one, that it is a rag that has been torn, for I exploded that one myself."

"A 'rent rag,'" said Bud slowly and carefully, "is a rag for rent. A—a—er—well, it's a—"

"Tell me, Ted," said the girl, turning to the leader of the outfit, who was leaning back in his chair smiling at the ridiculous conversation.