The hero Sebastian Knight is a fictional Russian-British writer, his track was secret and maverick and he was famous for being good at writing "e;research novel"e;, unfortunately, he died at an early age. The first-person narrator of the story is Sebastian's half-blooded brother V. In order to refute the distortion of the journalist Goodman to his deceased brother, he is determined to write a biography for his brother. He carefully studies his brother's work and a small amount of legacy documents and visits a small number of insiders to try to retrospect the traces of his brother when he was still alive. As the story unfolds, a talented, individualistic, and quirky fictional writer appears in front of the reader, while the narrator himself is thinking about life and literary creation in the process of investigation and writing and then become another of hero. This book is first English novel written by the master of literary form Nabokov.