I'm not someone who can evaluate the value of books. The Twenty-Four Histories was a very ancient Chinese classic document that contained 5,000 years of Chinese civilization. Its value and importance were self-evident. However, the value of a book depended on many factors, such as the author, the publishing house, the edition, the content, the historical background, and so on. All these factors would affect the price of a book. If you can find a 1986 historical romance and confirm that it is an authentic book, then it may be very valuable. However, the exact value depends on many factors. I can't give an accurate answer.