Mela dashed into the school library with a stuffed rucksack. In the front pocket slept Caraway, her doughnut-sized dragon. He snored quietly, smelled of cinnamon and sometimes ate pencils. Today, Mela had to hand in her monster atlas and pretend to be a normal schoolgirl. Mrs Tracz, the librarian, believed only in quiet children and quiet books. Mela took a breath and put the atlas on the counter. A sign hung on the door: Do not blow, do not rustle. Mrs Tracz raised an eyebrow and pressed the doorbell. - Silence is gold,' she whispered solemnly. - And silver? - Mela asked reflexively. - 'We don't accept silver in our house,' replied Mrs Tracz. Then Caraway woke up and sneezed into his rucksack. Two bubbles escaped from his pocket, smelling of gingerbread. They floated over the counter, bouncing off the shelves and Mrs Tracz's nose. - Mosquitoes? - whispered the librarian, squinting her eyes. Mela covered her pocket and smiled very innocently. - 'I'm hungry for letters,' hissed Caraway, licking the stamps from the library cards. - 'Don't eat the letters, we'll only have pictures left,' begged Mela. Another hiccup swelled in his cheeks like a balloon. The air trembled and the bookcase of encyclopaedias slid slightly. One bubble touched the bell by the door and began to grow. - Please do not touch the exhibits! - came Mrs Tracz's voice from behind a stack of chronicles. The bubble grew like a ball and lifted the atlas above the counter. Mela grabbed the corner, Caraway the cover, they both stopped breathing. At that moment the door creaked open and the headmaster entered the library.