"The Devolutionist and the Emancipatrix" is a science fiction novel by the famous American writer Homer Ion Flint. The book consists of two parts, which represent two opposites in the series - reverse evolutionism and emancipation. In the first part, the reader encounters a visitor from another planet who conducts scientific research on Earth. He helps Majora, who has fallen into the reverse process of evolution, to return to her human form. Meanwhile, in another dimension, an agent of scientific management saves a female genius, an emancipator, from an evil force that seeks to enslave her. The author successfully combines scientific concepts, adventure, and elements of fiction, revealing complex themes of evolution, power, individuality, and relationships between different civilizations. The book "Devolutionist and Emancipator" fascinates with its originality and unpredictability, leaving the reader surprised and thoughtful.