Well, Imogen is indeed present in the comics. Her character adds a unique element to the overall narrative and interacts with other characters in interesting ways.
One possible fanfic could be about Imogen and Agreus going on an adventure outside of Carnival Row. They might face some challenges from the human - fae tensions that exist in the show. Imogen could use her wits and Agreus his strength to overcome obstacles.
One common theme could be friendship. Imogen might form new and unique friendships with the main characters like Harry, Ron, and Hermione. For example, she could be the one to help Harry through a difficult time when his other friends are preoccupied.
Perhaps Imogen gets injured while trying to help the fae community, and Agreus takes care of her. During her recovery, they grow closer and realize that their feelings are deeper than they initially thought. He tells her stories of his homeland while she recovers, and they fall in love through these shared moments.
Sure. You can check out websites like Fanfiction.net. There might be some stories where Imogen is a new character added to the Harry Potter universe, perhaps a student in Hogwarts who has an interesting backstory and gets involved in the main plotlines in creative ways.
First, do your research on the species. Learn about the characteristics, cultures, and values of both humans and turians. For example, turians are known for their honor - based society....
Well, if Percy tells his story, it would surely include his adventures at Camp Half - Blood. He'd talk about his first discovery that he was a demigod, his encounters...