Well, a major theme is the threat of being consumed. Whether it's by a huge sea monster or some sort of malevolent underwater entity, the idea of being eaten or destroyed underwater is common. Also, the theme of the breakdown of technology is often present. In underwater settings, technology like submarines or diving equipment is crucial for survival, and when it fails, it leads to horror. And there's the theme of madness. The isolation and the strange things that happen underwater can drive characters insane, which is a typical element in these novels.
One common theme is discovery. Usually, the main characters discover new parts of the underwater world, like hidden caves or lost civilizations. For example, in many novels, a character might stumble upon an ancient underwater city filled with forgotten knowledge.
Conflict between different underwater species or kingdoms is a typical theme. For instance, there could be a war between mermaids and sea monsters. Adventure is also very common. Characters in these stories usually embark on exciting adventures in the underwater world, facing various challenges like dangerous sea creatures and strong currents. Another important theme is the connection between the underwater world and the surface world, how they interact and influence each other.
Well, in underwater love stories, a frequent theme is the contrast between two worlds. Take 'The Little Mermaid' for instance. There's the underwater world of mermaids and the human world above. The lovers have to bridge this gap. Another theme is longing. The characters long for each other despite the difficulties. In 'Shape of Water', the two lovers long to be together despite the oddness of their relationship. And of course, there's the theme of acceptance. The lovers have to accept each other's differences, like in 'Aquamarine' where the mermaid has to accept the way human love works.
The theme of self - discovery is also common. When Percy is underwater, he is often in a different environment from his normal life on land. This new setting makes him face new challenges and learn more about himself. He might discover new powers or aspects of his personality that he didn't know before. It's like the underwater world is a mirror for him to understand himself better.
Equipment failure is very common. For example, the torch might stop working or the oxygen regulator could malfunction, like in the story where the diver's oxygen supply got tangled. Another element is the unpredictable underwater environment. Currents can be dangerous, as seen when the welder was knocked against a structure. And lastly, the fear of the unknown, like the strange movements and unexpected shifts in the shipwreck story.
One common theme is the idea of the shrine being a source of ancient evil. For example, in many novels, the shrine might be the resting place of an old demon or dark spirit that gets awakened.
One common theme is the battle between good and evil. In these novels, the fiend represents pure evil, and often there are characters trying to oppose it, like priests or brave individuals. For example, in 'The Amityville Horror', the family has to deal with the malevolent presence in their new home.
The theme of the dragon's lair is also common. The lair is usually a dark, dangerous place filled with the dragon's hoard and other terrors. It represents the heart of the horror. When characters enter the lair, they are in the most dangerous place possible, and the descriptions of the lair can be really spooky, with bones and strange artifacts everywhere, and the ever - present threat of the dragon.
One common theme is the fear of the unknown. Ghosts often represent something that is beyond our understanding. Another is death and the afterlife. These novels explore what might happen after we die. For example, in 'Dracula', the vampire is a kind of undead being, blurring the lines between life and death.
One common theme is the supernatural. Ghosts, demons, and otherworldly entities often play a big role. For example, in 'The Shining', the haunted hotel is filled with ghosts that drive the characters to madness. Another theme is psychological terror. It messes with the characters' and readers' minds, like in 'Psycho' where the seemingly normal motel owner has a terrifying secret. Also, death and the fear of it are prevalent. It could be a sudden, violent death or the anticipation of it, which creates a sense of dread throughout the story.