Porubezhnaya is a strange village where residents are not allowed to leave their homes after nine in the evening, and the streets are completely dark. Fifth-grader Alice moves here with her mother, a physicist. On the very first day, the girl accidentally ends up in a biology lesson in the fifth “B”, but no one believes her, because there is no such class in this school! Alice herself would have decided that she dreamed about the lesson, only one of the students left her his pocket flashlight. To return it to its owner, Alice will have to learn about the conspiracy of scientists and find herself in a place that seems to be created from nightmares... Saved in PDF A4 format publishing layout of the book.