"The world of utopia, secrets and adventures is revealed in the book "The Fun of the Gajanchik" by the literary duo Agnes and Egerton Castle. The main character, a young inventor, finds himself in the center of a terrible crime and intrigue, where he will have to not only save his life, but also save the whole world from Will he be able to solve all the puzzles and solve the mystery of the crime that threatens the world of the future? "Gajanchik's Fun" is an exciting and unpredictable adventure that will take you to the world of fantastic technologies and incredible discoveries.