I'm not sure which specific 'abigail novel' you are referring to. There could be many characters named Abigail in various novels. Without more context, it's difficult to determine who this Abigail is exactly.
Gundam and Luna Doujin novels are usually literary works that are creative adaptation of the Gundam series and the Luna series. The protagonist can be a reader who likes the Gundam series or the Luna series, or a character with a specific plot or background.
The main character could be a person with a Gundam or Luna Body, or a professional warrior who used a Gundam or Luna Body to fight. In some cases, the protagonist may develop a love story with another character, which is usually an important element in the story.
Some Gundam or Luna Doujin novels may have fictional Gundam or Luna characters. These characters may be new characters created by the author or adapted from existing Gundam or Luna characters.
Gundaluna's Doujinshi novels could cover a wide range of topics and styles, including science fiction, fantasy, romance, and so on. If you like the Gundam or Luna series, reading the Gundam and Luna Doujin novels might be an interesting choice.
Since I don't have details about this 'abigail and sean novel', it could be that it tells a story of mystery and intrigue. Abigail and Sean could be involved in solving a mystery that has to do with their families or the place they live. It could also be a historical novel where they are characters living in a certain historical period, dealing with the social and cultural norms of that time while also having their own personal stories.
It depends on the specific details of the Abigail Western story you're referring to. Some fictional stories might have elements that seem real, but that doesn't mean they are based on actual events.