One possible theme is the struggle against the unknown. The darkness in the labyrinth represents the unknown, and the characters have to face their fears to progress.
Isolation might also be a theme. The labyrinth is a place where one can easily get lost, both literally and metaphorically. The character may feel isolated in the midst of the darkness, cut off from the outside world. This can lead to self - discovery as they are forced to rely on themselves in this desolate and dark environment.
The 'legend of darkness' might refer to some ancient or mysterious tale related to the labyrinth. In this fanfiction, it could be that the author is delving into the origin of this darkness, perhaps as a result of a long - forgotten curse or an ancient evil lurking within the labyrinth. The story may then follow the protagonist as they try to either overcome or understand this darkness.
A common theme could be the struggle between light and darkness. Since it has 'darkness' in the name, many fanfictions might explore how the characters deal with the forces of darkness, and how they strive to bring light or balance. Another theme might be friendship or camaraderie, as the characters band together against the challenges presented in the legend.
Another theme could be redemption. Maybe Darkness has done some bad things in the past, and through its relationship with Lily, it tries to redeem itself. It makes for a very interesting dynamic.
One possible theme could be isolation. The voice in the darkness might make the character feel more alone, even in a world full of other beings like in Twilight.
Love and loyalty could also be a theme. There could be a romantic relationship between Loki and the queen, which would then bring up questions about loyalty. Is Loki loyal to the queen? Or does he have other loyalties that conflict with his relationship with her?
One possible theme could be the struggle against the unknown. Darkness often represents the unknown in literature, and characters may have to fight their fears.
One common theme is discovery. As the characters explore the labyrinth, they also discover their feelings for each other. For example, they might find a hidden chamber in the labyrinth that becomes a special place for their relationship.
I'm not sure specifically as I haven't read that particular fanfiction. It could potentially be about a story that involves characters named Darkness and Lily, and perhaps the 'legend 1985' might be related to the setting or some backstory within the fictional world.
One possible theme could be courage. Riding in darkness can be scary, so the story might be about someone finding the courage to do it.
One common theme is exploration. Just like in the original series, characters in these fanfictions often explore the unknown areas of the labyrinth, which is filled with hidden passages and magical secrets.