<p>One day, Mr. Keene called all the students and teachers together and said, "This is a fine, fine school! From now on, let's have school on Saturdays too."And then there was more.</p> <p>School all weekend.</p> <p>School on the holidays.</p> <p>School in the SUMMER!</p> <p>What was next . . .</p> <p>SCHOOL AT NIGHT?</p> <p>So it's up to Tillie to show her well-intentioned principal, Mr. Keene, that even though his fine, fine school is a wonderful place, it's not fine, fine to be there all the time.</p>