Another possibility is that Harry Potter discovers some secrets that the Shield doesn't want to be revealed. This could be about the true nature of certain magic, or something related to the power structure in the wizarding world. So, they chase him to keep him quiet and prevent the spread of this knowledge.
It could be that there has been some sort of misunderstanding. For example, Harry might have been wrongly associated with a dark magic item or a dangerous spell. And the Shield in the fanfiction, which could be some sort of secret or powerful organization, chases him to investigate or stop him from using this supposed 'evil' power.
He could be captured and imprisoned. If Shield is a powerful and secretive organization, they might have their own prisons or ways of detaining people. Harry would lose his freedom and might not be able to continue his normal life or his fight against the real dark forces.
Well, it could be a symbol of protection. In the wizarding world, Harry has faced many dangers. Owning a shield might represent his need to defend himself against the Dark Arts and his enemies, like Voldemort. Maybe it gives him an extra layer of security during battles or when exploring dangerous places.
Because 'Harry Potter' is an original and highly creative work with its own unique world - building, characters, and storylines. It's not derivative fanfiction. J.K. Rowling created the entire wizarding world from scratch, including Hogwarts, the Ministry of Magic, and all the spells and magical creatures. It has a distinct identity and has been developed in a way that sets it far apart from being a simple fan - made addition to an existing 'Potter' concept.
The 'Harry Potter Tracked by SHIELD' fanfiction could be a really interesting blend of two very different universes. It might start with SHIELD's technology detecting some strange magical anomalies related to Harry Potter. As they start tracking him, they could be amazed and a bit frightened by the power of magic. Harry, on the other hand, might be initially suspicious of these non - magical people following him. The story could develop into a complex web of relationships, with Harry and SHIELD either working together against a common enemy, like a dark wizard who wants to use both magic and technology for evil, or they could be at odds with each other due to misunderstandings about each other's worlds.
In Harry Potter fanfiction, the sword and the shield can hold various significance. The sword, for example, like Gryffindor's sword, often represents courage and heroism. It can be a powerful tool for the protagonist to overcome dark forces. The shield might symbolize protection. It could be a magical shield that guards against spells or a more metaphorical shield representing a character's inner strength or the protection of a group or an idea within the fan - created story.
It could be due to the trauma he has experienced. Losing friends and facing Voldemort multiple times has surely left deep scars. Isolating himself might be his way of dealing with the post - trauma stress. He needs time alone to heal and come to terms with everything that has happened.
Another possible betrayer could be Dumbledore in some darker fanfictions. He might have a hidden agenda all along. He could be using Harry as a pawn in a much larger and more sinister game. And when Harry starts to figure things out and goes against Dumbledore's plans, Dumbledore betrays him to keep his own plans on track.
It's a bit of a complex statement. While Harry Potter is a mainstream, original work of fiction, there are aspects that could make one think it's like fanfiction. The extensive world - building and the way it has inspired so many derivative works are similar to what fanfiction does. However, it was created by a single author with her own unique vision, which is different from typical fanfiction that builds on existing works in a more decentralized way. So, it's not entirely a valid statement in the traditional sense.
It adds a new element of defense. Traditionally, Harry uses his wand and spells for protection. But with a shield, it gives him a more physical form of defense. It can change the way battles are fought in the story.
Some fans might create such fanfiction because they want to see Harry Potter as a more dominant and invincible figure. They might be dissatisfied with the limitations he had in the original books.