According to the principal, 4B is the worst class in the world. She says school is not about footling or fiddle-faddling or fun. It is about learning and it is high time 4B tried harder to excel at it. But Alex and Manjit didn’t literally mean to make their whole class sick with homemade biscuits. You see, 4B may be the worst class in the world, but you wouldn’t want to be anywhere else.