Mr Pink-Whistle Interferes

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. Tom Twisty cheats all his customers at market and nobody dares to complain, but he soon finds out that Mr Pink-Whistle has been watching his tricks...