Dark secrets are also frequently present. Each character may have a past they are trying to hide or a personal agenda that adds to the overall mystery and darkness of the story. For example, a character might be involved in illegal activities on the side that could put the whole MC in danger if discovered. Additionally, the sense of brotherhood in these novels is often explored in complex ways. It's not always a simple, harmonious bond. There can be jealousy, betrayal, and competition within the group, all while they present a united front to the outside world.
The theme of secrecy is quite prevalent. The MC has its own set of rules and secrets, and when a romance blossoms, these secrets can either bring the couple closer or tear them apart. Another theme is the idea of the outsider. Often, the female lead is an outsider to the MC world, and her entry into this world and relationship with an MC member is a central part of the story. Also, the theme of family, not just in the traditional sense but also the MC as a family, plays a role in the relationships and the overall story.
Mystical settings are common. For instance, ancient palaces hidden in the clouds or bottomless valleys filled with mist. These settings immediately give readers an otherworldly feeling, creating an illusion of a fantastical world.
One common element is a relatable main character. For example, in many fantasy 'mc story', the main character starts as an ordinary person but then goes on an extraordinary journey. They often face challenges and have to grow and learn from them.
Love at first sight is a common theme. For example, in many novels, the main character just sees the love interest and there is an instant spark. Another theme is overcoming obstacles. Like in stories where the MC and their love interest are from different social classes or have some external issues that they need to work through to be together.
One common element is the use of forbidden knowledge. Characters who practice dark magic often seek out arcane and dangerous secrets. Another is the association with death and decay. Dark magic might be used to raise the dead or spread disease in some stories.
Betrayal is a common element. A character that the protagonist trusts deeply turns out to be working against them. Another is a hidden past. When a character's dark past is suddenly revealed, it can change the whole dynamic of the story.
In an 'in a dark dark room story', a typical element is the exploration of the unknown. The dark room represents the unknown territory that the character has to face. There's also the idea of a transformation. Maybe the character who enters the dark room comes out changed, either because of what they found or what they experienced. Additionally, the limited visibility in the dark room forces the character to rely on other senses, which can lead to some interesting plot developments, like misinterpreting a normal sound as something dangerous in the dark.
One common theme is redemption. The 'killer' or dangerous main character often has a past they're trying to atone for, and love becomes a part of that journey. Another theme is the power of love to change someone. In these novels, the mc's hard exterior is often softened by the love they find.
Love and romance are also very common. Usually, there is a love interest, often a human, which adds a layer of complexity to the story. For example, in many such novels, the vampire has to protect their human love from other vampires or from the knowledge of their true nature. It's about the forbidden love aspect. And there's often a theme of power. Vampires are typically powerful creatures, and the main character might be dealing with how to use or control their power, or they might be in a power struggle with other vampires in the story.
One common theme is loyalty. In these novels, the bikers are often very loyal to their club and their brothers. This loyalty also extends to their relationships, as they are very protective of their love interests. For example, in 'Ride Steady', the hero is always there for the heroine, no matter what trouble she gets into.