There could be multiple novels with the title 'A Stolen Life'. So, without further information, it's difficult to determine the exact author. It might be an independent author or a relatively unknown one.
It could be about many things. Maybe it's about a character who has had their normal life taken away from them in some way, perhaps by another person or by a difficult situation.
One possible theme is loss. The person in the story has lost something essential like their freedom, identity or time. Another theme could be injustice. Since their life has been'stolen', there is an underlying sense of unfairness.
Since it's a 'Twilight' fanfic, 'a life stolen' could refer to many things. Maybe it's about a werewolf who loses his or her life as they know it when they get involved with the vampires in the story. Or perhaps it's a human character who has their peaceful existence in Forks disrupted by the supernatural happenings around them. Fanfics often explore different angles of the original story, so this could be a really unique take on the 'Twilight' world.
It could be about many things. Maybe it's a story of someone who had their normal life taken away, perhaps by a criminal act, or some sort of unjust situation. It might involve a kidnapping where a person's freedom was stolen, or it could be about identity theft that completely disrupted someone's life.
The thing that makes a stolen life story compelling is often the element of injustice and the fight for justice. Also, the emotional depth as the person deals with the aftermath can draw readers in. Another factor could be the mystery surrounding how and why the life was stolen.
It's about a person whose life is taken away from them in some unexpected and often dramatic way. Could be due to a crime, a misunderstanding, or some other twist of fate.