Perhaps a fanfiction about a character who is trapped in a dark and silent dimension. They have to rely on their inner strength and memories to find a way out. This could explore themes of self - discovery and isolation.
A 'darkness and silence fanfiction' could also involve a haunted place. A group of people enter an old, abandoned mansion where there is an eerie darkness and a strange silence. As they explore, they start to experience paranormal events that test their sanity.
One idea could be exploring the backstory of Clarice Starling. Maybe how she grew up and what led her to become an FBI agent. Another could be a different encounter between Starling and Hannibal Lecter, perhaps in a different setting like a European city.
Incorporate elements that enhance the mood. For instance, a cold wind that howls in the dark, but still maintains the overall silence as it's more of a background noise. Also, use the characters' internal thoughts to convey the unease of the darkness and silence. The character might be constantly on edge, listening for any sound in the oppressive quiet, and straining their eyes to see in the dark.
One idea could be exploring the psychological changes of the characters during those 30 days. For example, how they cope with the lack of light and the isolation it might bring. Another could be creating new relationships or alliances that form specifically because of the 30 - day situation.
One idea could be exploring the backstory of the main character in 'Darkness of Birth'. Maybe they had a difficult childhood that led to their current state. Another idea is to create a different ending for the story, where the characters face different fates. For example, the protagonist could overcome their inner darkness in a more unexpected way.
You could focus on the relationship between the sparkle and a character who is initially afraid of it. For example, a young girl who sees the sparkle in the forest at night. She thinks it's something evil but as she gets closer, she realizes it has a warm and positive energy. Then, she devotes herself to spreading the light of the sparkle throughout her gloomy village.
Perhaps a fanfiction where the tiger of darkness has a human form as well. In this form, it tries to blend into society but still has its primal instincts. The story could be about the internal struggle it faces between its human side and its dark, tiger nature. It could fall in love with a human, and then the conflict would be about whether to reveal its true self or keep it hidden.
One idea could be to cross it with a superhero universe. The Darkness' powers would create an interesting dynamic against heroes like Superman or Batman. For example, the Darkness' ability to manipulate shadows could be a real challenge for heroes who rely on light or technology.
One idea could be exploring the backstory of a minor character in 'into darkness'. For example, a crew member who has a hidden past related to the main antagonist. Another could be a time - travel plot where a character goes back in time to prevent the events that led to the 'darkness' in the story. Maybe also a story about a character who discovers a new power or ability that could change the course of the events in the 'into darkness' universe.
You could also write a fanfiction where the Lord of Darkness has to team up with his enemies to face a greater threat. This would be a great opportunity to explore his character in a different light, showing that even he can put aside his enmity when the situation demands it.
One idea could be exploring the backstory of the main character in 'Master of Darkness'. Maybe they had a normal life before becoming the master of darkness, and you could write about the events that led to their transformation. Another idea is to create a new villain who challenges the master of darkness in unexpected ways, adding more conflict to the story.