Sorry, I have no clue. It's possible that Mortal Instruments isn't a fanfic of anything and stands on its own as an independent work of fiction.
A good Mortal Instruments fanfic should have well-developed characters that stay true to the originals while adding new depth. The plot should be engaging and capture the essence of the series' magical world.
One interesting 'a mortal instruments fanfic' story could be about an alternate universe where the main characters have different powers. For example, Clary could have the power to control time instead of her usual abilities. Another could focus on a relationship that was never explored in the original series, like a deeper friendship between Simon and Magnus. There are also fanfics that might explore what would happen if a major villain turned good.
An interesting plot. It could be about the OC helping Alec with a mission, or them having a secret that affects their relationship. A good plot keeps readers engaged. For instance, if the OC has a power that is both a blessing and a curse and Alec has to deal with that aspect of them. Also, the chemistry between Alec and the OC is crucial. Their interactions should feel natural and build up gradually, like in a well - written romance where they start as acquaintances and slowly fall in love, through shared experiences and mutual understanding.
One great fanfic could be 'The Hidden Path' which delves deeper into the relationships between the characters. It explores their backstories in a way that the original books might not have fully covered.
Another concept is character backstories. Fanfics often delve deeper into a character's past, like exploring how a certain character got their special abilities in the Mortal Instruments games universe. This can add more depth and understanding to the character.
I really like 'Crossing Realms: Mortal Instruments in Hogwarts'. It takes the characters from the Mortal Instruments series and drops them into the world of Harry Potter. It shows how they adapt to the new magical environment, for example, Jace trying to understand Quidditch while also dealing with the threats in Hogwarts that are different from those in his own world.
One common theme is the struggle between love and duty. Jace has his responsibilities as a Shadowhunter, and the OC often has her own goals or loyalties. Their relationship has to navigate these obstacles.
Well, AO3 is a great place to start. It has a well - organized system for categorizing fanfics. You can search specifically for 'a mortal instruments fanfic' and then further refine your search based on things like the rating of the story (if you prefer something more family - friendly or more mature), the length of the story, and whether you want completed works or works - in - progress. Another option is Tumblr. Sometimes, Tumblr users will share links to their favorite 'a mortal instruments fanfic' or even post their own short fanfics directly on their blogs.
Clary Fray is often a popular character in fanfics. Her strong - willed nature and her journey in the original games make her an interesting subject to write about. Writers can explore different aspects of her personality and her relationships in fanfics.
Well, often they have a more adult and romantic slant. They might explore the physical relationships between characters in a way that the original 'Mortal Instruments' might not have delved into as deeply. For example, they could focus on the passionate side of a couple's relationship.