In this picture book Croatian author Igor Rajki, winner of the prestigious Grigor Vitez award and the award of the Fairy tale festival of Ogulin, deals with a contemporary issue – the issue of the excessive presence of electronic devices and their screens in our everyday life. He does this in an original way, using his distinctive imaginative poetic language, kindling the readers’ imagination and making them think at the same time. The narrator of the story is giving, as if he were a professor of some kind, a lesson about ‘assembling of darkness in the dark’ – an enchanting phenomenon that occurs at the end of the day, in closed spaces, when darkness begins to descend from the ceiling and rise from the floor; the two darknesses embrace each other and slowly turn into the thick dark. But that is not all; during their game they create small sprouts, so called darklets. Darklets playfully twirl around objects, taming their shapes and leaving no trace. But when various screens start to interfere, a problem occurs: grayish shadows appear where darklets should be… The literary story about darklets is narrated in another, visual language by Klasja Habjan, a young illustrator and designer. She creates impressive, secretive life in spaces on the edge between night and day, spaces inhabited by fleeting human and animal figures, fragments of objects and fragments of their interactions; she does this with extraordinary inventiveness, on a very high aesthetic level, making this book attractive not only for reading but also for (repeated) viewing. By offering the youngest readers an utterly unusual visual experience, Klasja Habjan broadens the concept of what a picture book can be, and opens up the space of children’s book for new ways of artistic expression.