If Hermione is Harry's sister in fanfiction, their adventures could be very different. For one thing, they might have joint adventures that are related to family magic. They could discover a special family spell or magical artifact that only they, as siblings, can access. Their adventures could also be more domestic in a sense. Instead of just going on big, world - saving quests, they might have to deal with family - related magical problems at Hogwarts or at home. For example, they might have to figure out how to deal with a family - cursed object that is causing trouble in their dormitory or at the Burrow. And in their adventures, they would rely on their family bond more, which could lead to different decision - making processes compared to the original story where they were mainly friends.
Well, they could have adventures that are more centered around protecting each other as family. In the original story, they were friends looking out for one another, but as siblings, it would be more of a family obligation. Maybe they would team up against threats specifically targeting their family line, and they would be more united in the face of danger compared to just being friends. Also, their adventures could involve helping each other with personal growth in a more family - oriented way, like Hermione helping Harry with his magic skills in a sisterly, nurturing way that might be different from how she did as a friend in the original story.
They could have adventures related to magical creatures. Since Cedric is a Hufflepuff, he has an affinity for them, and Hermione's thirst for knowledge would make them a great team. Maybe they go on a quest to find a rare and endangered magical creature and try to protect it from poachers. They would use their combined skills, Cedric's charm and physical abilities and Hermione's magic and intelligence.
They could go on adventures to uncover their family's past. Maybe there are some hidden magical artifacts or secrets related to their family that they need to find. They might also embark on a journey to protect their family from a new dark threat that specifically targets their family line.
One adventure could be them traveling to different magical and non - magical places together. Hermione could take Bella to Hogwarts for a while, and Bella could introduce Hermione to the world of the Volturi. They would face many challenges along the way, like dealing with Hogwarts' strict rules when a non - magical person like Bella is there, and Hermione having to deal with the dangerous vampires in the Volturi's territory.
Well, they could embark on an adventure that involves international intrigue. Maybe a valuable artifact has been stolen and is being smuggled across different countries. Sherlock and Hermione would use their combined skills to track it down. Sherlock would use his detective skills to follow the clues on the ground, while Hermione would use her knowledge of different languages and cultures (gleaned from her studies) to help them navigate through different countries and understand the motives behind the theft.
One adventure could be to stop a group of villains who are stealing magical artifacts to power up high - tech weapons. Hermione would use her magical skills to track down the artifacts and Tony would use his engineering skills to disable the weapons. Along the way, they'd learn from each other and develop a closer bond as siblings.
One adventure could be related to a mysterious magical artifact hidden somewhere in Hogwarts. They hear rumors about it and decide to search for it together. Along the way, they face challenges like magical traps set by previous Hogwarts students or even some dark magic that guards the artifact. But because they are twins, they have an unspoken understanding and are able to use their combined skills - Harry's bravery and Draco's cunning - to overcome these obstacles.
If Hermione was Oliver's sister in fanfiction, they could have all sorts of adventures. For one, they could team up to investigate strange happenings around Hogwarts that seem to be affecting the Quidditch games. Since Hermione is smart and Oliver is observant in the Quidditch field, they'd make a great team. They might also go on a quest to retrieve a lost Quidditch trophy that has some sort of magical power. And perhaps they'd get involved in a mystery involving a cursed Quidditch broom that is causing trouble for the players. Their combined skills would surely help them solve these problems.
They could have adventures exploring the Forbidden Forest. Harry, with his experience, would protect Astoria while they discover new magical creatures. Maybe they find a hidden magical artifact that has been lost for centuries.
Well, they could have all sorts of adventures. Maybe the baby cousin has some sort of special magic that Harry doesn't know about yet. For example, the baby cousin could be able to communicate with magical creatures in a unique way. And Harry, being the curious and brave wizard he is, would want to explore this new aspect of magic with his little cousin. They might go on a journey to find a rare magical creature that only the baby cousin can sense.
They could go on an adventure to find a lost family heirloom. This heirloom might be a powerful magical object that was lost during the First Wizarding War. Sirius, with his knowledge of the era, and Hermione, with her research skills, would make a great team to track it down.