Perhaps he meets a local historian who knows all about the castle's secrets and legends. This person could be really old and wise, and they start sharing stories with Harry that he never knew before. The historian might even have a connection to the magical world and help Harry understand something important about the castle's role in the magical realm.
He could meet the castle guards. They might be suspicious of him at first but then become friendly as they realize he has no bad intentions.
Maybe Harry could discover some hidden secrets in Windsor Castle. For example, he might find a long - forgotten passage or a mysterious room filled with old artifacts.
Harry could meet students from Ilvermorny. They would have different personalities and magical abilities compared to Hogwarts students. He might also meet American magical creatures' caretakers who can introduce him to creatures like the Wampus cat or the Horned Serpent. Additionally, he could come across American Aurors who have their own methods of dealing with dark wizards.
Perhaps he'll meet an old patient who has been in the hospital for a long time. This patient could tell Harry some long - forgotten stories about Hogwarts in the past. There could also be a chance that he meets some other students who are also in the hospital for various reasons, and they might form a new friendship or alliance.
Perhaps he'll meet some interesting magical creatures that are native to the holiday location. It could be a friendly forest sprite or a wise old centaur. He may also cross paths with some international wizards who are also vacationing there and learn about different magical cultures from them.
Yes, there might be. Fanfiction often takes existing fictional universes like 'Harry Potter' and places them in real - world or other fictional settings. Windsor Castle is a well - known and iconic location, so it's not surprising that some fans may have created stories that combine the magic of 'Harry Potter' with the grandeur of Windsor Castle.
He might meet the house - elves that have been taking care of Potter Manor for generations. They could show him around the manor and tell him stories about his family.
He might meet American witches and wizards. Maybe a young and adventurous wizard who shows him around the American magical world.
He could meet new professors who have unique teaching methods and vast knowledge of different magics.
He might meet Hermione. Since Hermione is always interested in academic things like Owls, she could be there to help Harry or just be involved in some research related to it.
There could be new types of magical creatures that have evolved or been discovered by 2110. Harry might interact with them, and they could either help or hinder his mission.