Tosia and Milosz whispered to each other all the way from school. There was something quietly buzzing in their backpacks: the brand-new toothbrushes their mother had bought them that morning. Tosia, who was over eleven, was convinced they were ordinary toothbrushes, but Milosz, who had always been steeped in a world of extraordinary adventures, suspected they were special. Before they entered the house, he tilted his backpack and peeked inside. The toothbrush shone completely as if it was covered in tiny crystals. "Look!" he called out. Tosia didn't want to believe it, but as soon as she caught her toothbrush in her hand, she felt a gentle tingling in her fingers. At the same moment, a strange rustling sound came from the bathroom and a silvery dust appeared in the air. The siblings looked at each other in disbelief. The brushes began to vibrate more and more strongly. Suddenly, the air swirled and... the bathroom floor parted like it was made of candyfloss! Tosia and Milosz plummeted downwards, screaming, but instead of landing hard, they fell on something as soft as foam. When they carefully lifted their heads, they saw that they were in a completely different place. An amazing land stretched out in front of them. Everything around them looked like it was made of.... teeth! There were white molar mountains, a river flowing between toothy hills, a bridge made of dental floss and colourful gardens full of different coloured pastes. Little apron-clad toothbrush-paradises marched along the paths, waving their hands in a friendly manner. From around the bend came the strangest creature they had ever seen - furry, with glittery eyes and a smile almost as wide as a motorway. "Welcome to Toothland!" - he called out, and his voice echoed between the mountain incisors. "A great expedition awaits you, for something very disturbing has recently occurred in our land.... Toothland needs your help - but beware! Your mission will not be easy, because in the deep recesses there have appeared.... strange Plakus." Tosia and Milosz exchanged quick glances. They didn't know what awaited them, but they were determined to try. Just then they heard a quiet giggle from behind the nearest bush of toothpaste. As they came closer, a hairy paw peeked out from between the leaves, and mysterious shadows began to lurk between the whitewashed 'trees'....