Behind the walls of one of the school lavatories, Mitchell, Becky and Templeton discover an ancient chamber. Inside, there's a giant stone toilet guarded by the vigilant statue of a knight.

Mitchell discovers a way to alter time by playing with the hands on an old clock tower. He and his friends decide to play around with time.

Mitchell is blamed when things start disappearing around the school. He tries to clear his name with the help of Becky and Templeton.

Becky dreams of becoming the star of a big musical, but her singing is awful. When she falls asleep in class next to the radiator, she has an incredible dream in which she and her friends are pursued by a hideous musical beast called The Grackle.

Becky sets up a stall to sell healthy snacks, like vegetables. When it becomes popular, however, Becky's stand poses a threat to the nasty, evil school chef.

When a creepy magical book transports Becky and Templeton back to Victorian times, Mitchell seeks to rescue them.