Qiu Chu is an author about whom limited public information is currently available; the library holds only one work by this author, titled Ling Yan (Spirit Flame). According to the existing classification, Ling Yan falls under essays and miscellaneous writings, suggesting that the work leans toward personal essays, prose, or reflective miscellaneous pieces rather than strictly fiction or academic writing. Because details such as dates of birth and death, nationality, educational background, and writing career cannot be confirmed, this introduction can only briefly address the clues available in the library. Qiu Chu's literary profile will become clearer only as more works and materials emerge; for now, Ling Yan may serve as an entry point for readers to understand this author's writing style, whose thematic orientation and mode of expression are still worth exploring through reading.