One interesting concept could be the exploration of strong friendships, much like the trio in the original series. Maybe the 'cord of three strands' represents three characters who form an unbreakable bond.
Perhaps it delves into new magical elements. In fanfiction, authors often create their own unique spells or magical artifacts. The 'cord of three strands' might be related to a powerful magical object that has a deep connection to three particular characters, binding them together in a way that is crucial to the story.
I'm not sure specifically as it depends on the author of the fanfiction. But it could be three new characters created for the story. Maybe they are students at Hogwarts who discover a mysterious connection symbolized by the 'cord of three strands'.
One interesting concept could be exploring more about the Marauders' time at Hogwarts. Fanfiction might expand on their adventures, like pranks they played that were never mentioned in the original book. Another could be different interpretations of Sirius Black's escape and his relationship with Harry during that time.
Some fanfictions in Harry Potter 2 might play with the idea of the basilisk having different powers or weaknesses. It could also explore the idea of a hidden connection between Ginny and the Chamber of Secrets that goes beyond what was in the original story. There might be fanfictions that change the role of certain characters, like making Neville a more central figure in solving the mystery of the Chamber.
One interesting concept could be exploring new magical creatures in the Harry Potter kingdom. Maybe there are some hidden species that haven't been discovered in the original series. Another could be alternative forms of magic that are unique to the fanfiction's version of the kingdom. And also, new relationships between different houses or characters can be quite fascinating.
One interesting concept could be the use of magic in relation to physical laws. For example, how spells might interact with gravity. Maybe a levitation spell actually counteracts the force of gravity in a way that can be explained through some made - up 'physics' in the fanfiction.
Well, some fanfictions play with the idea of blood magic in relation to family bonds. They might show how the blood of one's ancestors can be a source of hidden power or knowledge. For instance, a character discovers that their long - lost relative had a special blood - related spell that can only be activated by someone with their exact bloodline. It adds an element of mystery and heritage to the story.
One interesting concept could be the merging of the magical world of Harry Potter with the demon - slaying elements of Sparda. For example, a character from the Harry Potter universe might gain the power of Sparda and use it to fight dark wizards in a new and unique way. It could also involve crossovers where characters from both worlds interact, leading to unexpected alliances and conflicts.
One interesting concept could be the way animism is incorporated into the magical creatures. For example, how they might have their own spirits or consciousness that is more in - depth than what's shown in the original series. Maybe the hippogriffs have a collective spirit that influences their behavior towards wizards.
Another concept could be the inflation of Hogwarts itself. The castle growing larger and larger, with new and strange rooms and corridors appearing. This could lead to new mysteries for the students to solve, like finding a hidden chamber in the newly - inflated part of the castle that holds a powerful magical artifact.
Another concept is the idea of prophecies being manipulated. In some fanfictions, dark wizards or witches try to change the outcome of the prophecy by interfering with the events or people involved. This can create a lot of tension and drama as the characters fight against this manipulation.