One common theme is the manifestation of Merlin's hidden fears. Since he has so many secrets and a great burden, his nightmares often reflect his anxiety about being discovered or his power getting out of control.
The idea of his nightmares being a premonition is also quite common. In some fanfics, his nightmares are not just random bad dreams but a warning of an upcoming danger. So he has to figure out what the nightmare means and how to prevent the bad thing from happening in real life.
Well, in 'a cure for nightmares fanfiction', a very common theme is the battle between good and evil. The nightmares are often seen as an evil force that needs to be conquered by the good, which is the cure. Also, there's the theme of mystery. The source of the nightmares and the way to cure them are usually mysterious, which keeps the readers hooked. Additionally, the theme of transformation is present. Characters may transform as they go through the process of finding the cure, either becoming stronger or more empathetic.
One common theme is the mystery surrounding the janitor. Fanfictions often try to solve the enigma of who he really is. Another theme could be the horror aspect, emphasizing his creepy appearance and actions.
One common theme is friendship. Given Mono's relationship with Six in the game, fanfictions often explore the nuances of their friendship, like trust and betrayal. Another theme is survival. The world of 'Little Nightmares 2' is full of danger, and fanfictions show how Mono tries to survive in different situations.
One big theme is the exploration of magic. In many Merlin female fanfictions, the female characters are either learning magic, or have a special connection to magic that is different from the male characters. For instance, a female character might have a more intuitive approach to magic. Also, the theme of friendship is present. A female character could form a strong friendship with Merlin or other characters like Guinevere, and this friendship is crucial in their adventures.
Power and responsibility are common themes. As Merlin becomes king, he has to handle the power he's gained while being responsible for his kingdom. Another theme is magic and its role in ruling. Since Merlin is a powerful sorcerer, fanfictions often explore how his magic affects his kingship, whether it's for protection or for the betterment of the kingdom.
One common theme is the loss of hope. As Camelot collapses, the characters often struggle with losing their faith in the future. Another theme is the test of loyalty. Friends may turn against each other in the face of chaos.
Another theme is the empowerment of female characters. In these fanfictions, the female characters usually break free from the traditional roles and show great strength and independence, especially in the context of their relationships.
A prevalent theme is the exploration of magic itself. How the magic in the Harry Potter universe and that in the Merlin universe are related or different. Also, destiny plays a role. Fanfictions often explore how their destinies are intertwined, whether it was meant to be that they meet and change the course of events in both their worlds.
One of the main themes is the conflict between Merlin's secret magic and the public perception in the royal court. There's also the theme of destiny. Merlin is often seen as having a great destiny in relation to the royalty. And love, whether it be platonic or romantic between Merlin and the royal characters, is a frequent theme. For example, in many fanfictions, Merlin forms a deep bond of friendship with Arthur that is almost like a brotherly love. His loyalty to Arthur and the kingdom is constantly tested by his need to hide his magic.
Magic is a very common theme. Since it's about Merlin's ritual, magic is at the core. It often shows how powerful Merlin's magic was through the ritual.