The book "Do not let in" by the famous American writer Fredric Brown is an exciting detective thriller that excites the reader's imagination from the first pages. The main character investigates a series of mysterious crimes related to a mysterious forbidden area known as the "Exclusion Zone". Readers will not be able to tear themselves away from the tense plot, confusing surreal images and unexpected solutions to mysteries. The book "Don't let go" is an exciting journey into the world of unpredictable events and incomprehensible phenomena, which will leave readers on the edge of reality and fiction.