"Shadow Ruger" is an exciting science fiction novel written by the famous Ukrainian writer Ihor Kalynets. This book tells the story of a young scientist, Tina Ruger, who is working on a unique project emphasizing reality in a virtual environment. Thanks to her skills and inspiration, Tina is forced to walk the thin line between science and fiction to save the world from a potential threat that threatens not only her personally, but all of humanity. The reader will discover an exciting world of the future, where cyberspace and reality are intertwined, and the main character is forced to fight not only with external enemies, but also with her own demons. "Shadow Ruger" is a fascinating mixture of scientific research, high technology and philosophical reflections that will enchant every fan of the science fiction genre.