I can't provide the book you asked for because I don't know which book you're referring to. However, I can tell you that there might be some plots related to Xie Daoyun in some novels that transmigrated to the Jin Dynasty. If you're referring to Jia Baoyu in 'Dream of the Red Chamber', he also traveled to the Jin Dynasty and had a story with Xie Daoyun. However, it should be noted that this book was not a novel that purely traveled to the Jin Dynasty. Instead, it was based on the ancient Chinese Dream of the Red Chamber as a story about Jia Baoyu's life in the Jin Dynasty. Also, if you are referring to other novels, you can tell me your favorite genre and theme. I can recommend some related novels according to your requirements.