Well, the theme of transformation could also be present. Maybe the beetles in the novel have some power to transform things or people. This transformation could be physical, like changing a person into a grotesque beetle - like creature, or it could be more of a mental transformation, driving a character mad with their presence. And there's also the theme of nature turning against humanity. Beetles, which are part of nature, when used as a horror element, can show nature as a menacing force that humans are powerless against.
Another theme might be the idea of invasion. If the beetles in the novel are swarming or multiplying uncontrollably, it gives a sense of the characters' space being invaded, both physically and psychologically. It can represent a threat to the safety and order of the characters' world. For example, they could be eating away at a character's home or infesting their body in a metaphorical sense. Also, decay is often associated with beetles. In a horror novel, this could be related to the decay of a character's sanity or the decay of a society as the beetle presence spreads and causes chaos.
One common theme could be the fear of the unknown. Beetles are often small and hidden, so when they are made into a source of horror, it plays on our fear of what we can't see or fully understand.
Well, there are themes related to discovery. Characters may discover new things about themselves, their powers, or the other world they encounter. And there's also the theme of adaptation. How do the characters adapt to the new rules and cultures of the other universe? For instance, a Blue Beetle character in Hogwarts would have to adapt to the magical society's norms and vice versa.
A common theme is adventure. Since Blue Beetle is often involved in heroic deeds, the reader gets to be part of those exciting adventures in the fanfic.
Another theme is his relationships, like his family relationships. His family often plays an important role in fanfics, as they are a big part of his life in the original story. And of course, there are also romantic relationships explored in many fanfics, whether it's a new character or an existing one from the Blue Beetle universe.
The idea of Blue Beetle's origin story is also a common theme. Writers might expand on it, or give it a different twist. For example, they might explore how he got the Scarab in more detail. His growth as a hero, both in terms of his powers and his character, is also often written about. He starts as a bit of an outsider in Young Justice, so his journey to fit in and become a respected member is a popular topic.
Adventure is also prevalent. Writers often send them on various missions together. For example, they could be on a quest to stop a new super - villain that's causing chaos in the city. These adventures allow the characters to show off their powers and personalities, and also give room for their relationship to develop further.
One common theme is the OC being a sidekick or partner to Blue Beetle in his superhero adventures. Another is a romantic relationship developing between the OC and Blue Beetle.
Some common themes include the supernatural, like ghosts, demons, and witches. There's often a sense of dread and foreboding. Castles and dark forests are typical settings. Also, themes of death, the afterlife, and the battle between good and evil are frequently explored.
One common theme could be the sense of unease and fear within a domestic setting. Since it's a nanny - related horror novel, there might be themes of the unknown nature of the nanny. Maybe she has a dark past or some secret motives that create a feeling of dread in the household. Another theme could be the vulnerability of the family, especially the children, who are often the focus when there's a nanny involved. It can play on the fears parents have about leaving their kids in someone else's care.
One common theme is the psychological trauma. Soldiers often face extreme fear, guilt, and stress during combat which can haunt them long after the war. For example, in many novels, troops may have nightmares or flashbacks of the violent events they witnessed.
One common theme is the fear of the unknown. In deep horror novels, things that are not understood, like supernatural forces or strange creatures, often create a sense of horror. For example, in Lovecraft's works, the unknowable and ancient entities bring a deep sense of dread.