Well, it depends. If Jason Vail is a writer, perhaps his books are listed on Fantastic Fiction, which is a platform that showcases a lot of different works. But if he's not in the writing or publishing business related to novels, then there may be no relation at all. It could also be that he has a personal interest in Fantastic Fiction and is just a regular user or a fan of the site.
The character of Steve Vail himself makes the novels unique. He has a distinct personality, being a former FBI agent with a lot of experience and a no - nonsense attitude.
A 'amberley vail mass effect fanfic' could potentially be a story that expands on the role of Amberley Vail in the Mass Effect universe. It might tell a new story that wasn't covered in the original games. For example, it could show her on a secret mission, or her interactions with other characters in more depth. It could also explore her backstory, like where she came from and how she got involved in the events of Mass Effect. There are so many possibilities when it comes to fanfics in the rich Mass Effect universe.
Steve Vail novels often feature complex storylines that keep readers on their toes. In his stories, Vail usually gets involved in dangerous situations where he has to use his intelligence and combat skills to solve problems. For example, in 'The Bricklayer', he is pitted against powerful adversaries, and the way he outwits them is what makes the novel so engaging.