Gothic fiction was a literary genre. By the 24th century, few people still liked the genre, Aquiel Uhnari among them.
Cold Moon Over Blackwater was an example of a gothic fiction story. (TNG: "Aquiel")
Though it is not expressly stated, The Fatal Revenge may also be a gothic fiction book. At least, the Star Trek Encyclopedia (3rd ed., p. 148) identifies it as such.
This genre may have experienced a revival under the name "neo-Gothic literature (β)", according to the Star Trek: SCE eBook War Stories, Book 1