Mr Pink-Whistle Has Some Fun (Happy Days)

Mr Pink-Whistle is half brownie and half person, and his friend Sooty, the big black cat, can talk. But Mr Pink-Whistle can also make himself invisible, which means that he can do what he enjoys most - helping people.

So when two bad boys play tricks on people and frighten two little girls, Mr Pink-Whistle decides to teach them a lesson...