"The Man Who Killed the World" is an exciting science fiction novel by Ray Cummings that throws the reader into a fascinating post-apocalyptic reality. In this work, he tells the story of a loner who becomes humanity's last hope to save the world from complete destruction. The author skillfully combines a dynamic plot, deep philosophical considerations and fascinating characters, creating an exciting world that will remain in the reader's memory long after the last page is finished. "The Man Who Killed the World" is a work that will capture the attention of science fiction lovers and leave a deep mark on the soul of everyone who dives into its pages.