nine o'clock
`` My best , new hat ! Run after him ! '' wailed Miss Mason . The nine o'clock bell had rung five minutes before , but no one thought of that . The entire school knew that one of the circus monkeys had been found in Miss Mason 's room , and there was no question of holding assembly till it was driven out or captured . Pell-mell down the stairs ran the children after the monkey . His quick eyes glanced about for a haven .