One adventure could be about facing the guardians of the Peverell family secrets. These guardians could be magical creatures or enchanted defenses that Harry has to overcome to learn more about his Peverell heritage.
It depends on the specific fanfiction. Some fanfic authors might not make any connection between Harry Potter and Peverell Castle at all. However, others could come up with really creative ideas, like the castle being a hidden place where the secrets of the Peverell family, including those related to the Deathly Hallows, are stored and Harry has to go there on a new adventure.
In this fanfiction, Harry could have an adventure of uncovering the true power of Potter Manor. The manor may have been built on a powerful magical ley line, and as Harry explores, he discovers that the manor has the ability to amplify his magic. However, there are also dark forces that want to take over the manor for its power. Harry has to battle these forces while also learning how to harness the manor's power for good. He might also discover a hidden room with a prophecy about his future and the future of the wizarding world, which would set him on a whole new adventure to fulfill or change that prophecy.
They could go on an adventure to find a missing magical artifact that has fallen into the Muggle world. Gibbs' skills in tracking and Harry's knowledge of magic could be combined to track down the artifact before it causes any harm.
He could go on adventures to discover hidden vaults within Gringotts. Maybe there are vaults that have been lost for centuries, filled with ancient and powerful magical artifacts. Harry could search for these vaults, facing various traps and puzzles along the way, similar to the challenges he faced in the Philosopher's Stone.
Yes, in some fanfictions, there could be a plot where Harry Potter is related to Lord Peverell in various ways. Fanfiction often takes creative liberties and might come up with unique backstories or connections between different characters from the Harry Potter universe.
Perhaps Harry Potter and the dinosaurs embark on a journey to find a lost magical artifact that has the power to restore balance in the wizarding world. The dinosaurs might know where the artifact is hidden because they have a connection to the ancient times when the artifact was last seen. Along the way, they face various challenges like dangerous terrains, other hostile magical creatures, and traps set by dark forces. Harry has to use his magic skills and his ability to talk to dinosaurs to overcome these obstacles.
Perhaps in this fanfiction, the stand has some special powers. Harry Potter could use it to communicate with magical creatures that are only attracted to the sound or movement of the stand. He might go on a journey to find a lost magical artifact, and the stand is crucial in guiding him through difficult terrains or mazes.
Perhaps he uses the island as a secret training ground. He could practice advanced spells away from the prying eyes of Hogwarts faculty and students. Harry might also build his own magical fortress on the island for protection and privacy.
Well, he might have all kinds of magical adventures. Maybe he uses the staff to fight new and more powerful dark creatures. He could use it to unlock hidden magical secrets in Hogwarts or other places. It could also be that the staff gives him a new form of magic that he has to learn to control, leading to a series of challenges and growth.
In a castle story, you might find mysterious disappearances that need to be solved. There could also be a power struggle among the castle's residents for control. And don't forget about the possibility of magical elements like enchanted objects or spells protecting the castle.