"You're tired getting ready and the last day of school upset you," she declared. "Just wait till you get to the Beach—you may not see Mattie all summer. She is at the end where all the new houses are and we're in the unfashionable section. It will take more than Mattie Helms to spoil our fun."
"Ask a riddle, Polly," suggested Jess. "Here we are having a meeting and we haven't done a thing."
"All right, I know a riddle that is just the thing for to-day," said Polly, smiling. "I'll ask you, Margy. Name a wheel that can't be used in any machinery."
Margy thought for a moment. Her face cleared.
"A bicycle!" said she.
"You can use a bicycle in machinery," Polly insisted. "Take it apart and use it for lots of things. Three guesses, Margy, because it isn't thinking weather, as Artie says. Try again."
Margy thought so long that her brother Fred began to shuffle his feet impatiently. Margy looked at him reproachfully.
"How can I think when you are so noisy?" she asked. "Is this right, Polly? A flywheel?"
Fred and Artie hooted, for this was too much for their mechanical minds.
"A flywheel is a part of machinery," Fred explained.