What is the plot of a Sherlock OC fanfic where the character knows what is going to happen?

It could be that she overheard important conversations or found some hidden clues that gave her the ability to predict events. Another possibility is that she's part of a secret organization that has access to privileged information.

The originality. Since it involves original characters, it can take the Sherlock universe in new directions. For example, an OC could have a different cultural background or a unique skill set that Sherlock hasn't encountered before.

The unique perspective an OC brings. Since they are not part of the original canon, they can introduce new storylines. For example, an OC could be from a different culture or profession, which adds a fresh dimension to Sherlock's world.

Another theme is the mystery aspect. The fanfics usually involve some sort of mystery that both Sherlock and Irene are trying to solve. It could be a case related to Irene's past or something that Sherlock stumbles upon and Irene gets involved in. For example, in some fanfics, there are secrets about Irene's family that she and Sherlock have to uncover together. This adds an element of intrigue and keeps the story going.

Good fanfic in this genre often has an engaging plot. Whether it's a new mystery for Sherlock to solve with the help of the OC or a story that focuses on the relationships between the characters, it has to keep the reader interested. It could be something like the OC having a hidden agenda that slowly unfolds throughout the story, creating suspense and making the reader eager to find out more.

One common theme is the exploration of power dynamics. When a scandal occurs in the Sherlock universe with an OC involved, it often shows how power shifts between characters. For example, an OC might be in a position where they have some power over Sherlock or Watson due to the knowledge of the scandal. Another theme is redemption. The OC might be a character who has made mistakes and is involved in the scandal, but then tries to make amends throughout the fanfic.

One common theme is change. Fall is a season of change, and often in these fanfics, the OC goes through some sort of transformation, just like the changing leaves. For example, they might change their view on Sherlock or their own detective skills.

One idea could be an OC who is a brilliant scientist that crosses paths with Sherlock and Watson while working on a top - secret experiment. The OC's knowledge could either complement or conflict with Sherlock's methods.

It could make him seem more domesticated. He might start to take an interest in things like home decor or cooking for his spouse. His deductive skills could be applied in new ways, like deducing what his partner wants for a gift or how to make their day better. However, he could also struggle with balancing his detective work and his marriage, leading to some internal conflict that adds depth to his character in the fanfic.

One possible plot could be that Harry Potter is hired by Sherlock Holmes to help with a case that involves dark magic. Harry uses his knowledge of the wizarding world to uncover clues that Sherlock couldn't find with just his deductive skills.