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.
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.
Well, they might have an adventure in space. Maybe there's a threat out there that requires both Iron Man's advanced technology and Spider - Man's unique abilities. They could team up with other superheroes like the Guardians of the Galaxy. Peter would be in awe of the space settings, and Tony would be using his engineering skills to adapt to the new environment. Their father - son dynamic would add an interesting layer to the adventure, with Tony looking out for Peter while also relying on his help.
There could be an adventure where they have to infiltrate a secret society. Bruce uses his stealth and martial arts skills to get in unnoticed, while Tony uses his charm and high - tech gadgets to gather information from the inside. They could also have an adventure that involves time travel. They accidentally get sent back in time and have to find a way to get back to their own era. Along the way, they meet their ancestors and learn more about their family history, which strengthens their brotherly bond as they realize how much they have in common with their predecessors.
One adventure could be when an interdimensional rift opens up that is spilling out all kinds of dangerous creatures from both the world of Greek mythology and other high - tech alien dimensions. Percy and Tony would have to team up to close the rift. Percy would fight off the mythical beasts like cyclopses and harpies, while Tony deals with any alien threats. They could also have an adventure where they are trying to find a cure for a strange new disease that is affecting both normal humans and demigods. Tony would use his scientific knowledge to analyze the disease, and Percy could search for any magical herbs or items that might be a part of the cure.
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.
They could have adventures that span both the magical and technological realms. Maybe they would team up to stop a villain who is using a combination of dark magic and advanced technology. Harry could use his invisibility cloak and magic spells to infiltrate the villain's lair, while Tony uses his Iron Man suit to provide backup and technological support.
They could go on a mission to stop a group of tech - thieves. Kid Tony Stark uses his inventions to track the thieves, while the Winter Soldier uses his combat skills to take them down. Another adventure could be exploring an abandoned Hydra base. The Winter Soldier has some knowledge of the layout, and Tony's scientific expertise helps them understand and deal with any hidden traps or dangerous experiments left behind.
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.
She could have adventures that combine her demigod skills with Stark technology. For example, she might use her strategic thinking from her demigod training to help Tony in his battles against villains. Maybe she'd design new weapons or gadgets that incorporate both magic and technology.
They could go on a quest to find a magical - technological hybrid artifact. The two of them would use their unique skills. Tony would use his tech to analyze the magical elements and Harry would use his magic to navigate through the enchanted areas they might encounter.