"Tarrano the Conqueror" is an exciting science fiction book by author Ray Cummings. In this book, readers enter an exciting world where the main character, Tarrano, makes an incredible journey through time. He has amazing technology that allows him to break the laws of nature and interfere with the course of history. Under the solemn nickname "The Conqueror", he forces readers to think about the boundary between power and morality. This book will offer you an exciting adventure and leave a lot of room for thinking about what the future can be like, which we can only imagine today.