The saddest king

Once there was a country where the people were always happy.

They would smile and laugh when the sun shone down, when it poured with rain and even when the snow fell and their teeth were chattering.

Nothing ever made them sad or cross. But this is the story of a small boy who breaks the law.

He cries. He is taken straight to the king who, it is said, is the happiest person in the land.

Can the boy convince the king that it's all right to be sad sometimes?