Description: A young boy finds a magic marble that grants him any wish he wants. One day he wishes for a giant steam-roller, and it starts to trash London. (freeze time to get to school) Richmond is a schoolboy who finds a magic marble that grants wishes. He uses it to escape into his own fantasy world, get revenge on bullies, and pull pranks on his teachers. This gets out of hand when he makes a toy steam roller into a real one which runs wild in London. Richmond's father comes to his rescue, and the boy is happy to learn that he's lost the marble.