December in Horsmarlonerpool was normally a wonderful time of year. Everyone would buy Christmas presents and eat cinnamon buns in the market that was set up in the square where Pepperpot Street meets Candlesmoke Lane. And everyone would ice skate around a special frozen obstacle course on the River Gurgleglug. And people would toboggan down Lomberstack Mountain on the longest and most exciting track in the world.

But this year was very different. A few weeks ago, Pebbles and Crater - the two only really naughty people in town - had invented a dangerous pill that made your right eye blink, and your tummy burp, and your mouth whistle all at the same time. And can you imagine how awful that would make you feel.

WINK. BURP. WHISLTE. All day long!