I'm not sure specifically as I haven't read this particular fanfiction. But it might involve Sirius learning about Harry's final wishes, perhaps wishes related to his friends, Hogwarts, or the fight against the Dark Arts.
In this fanfiction, if Sirius reads Harry's will, it could be a turning point in the plot. Harry might have used his will to pass on his knowledge, for example, about the Horcruxes if he had discovered more. Sirius could then use this information to continue the fight against Voldemort. Or perhaps Harry left instructions about how to care for his friends or his pets. It could also be a way for the author to explore the relationships between Harry and Sirius further, showing how much they meant to each other even after Harry's death through the things he chose to leave behind in his will.
Well, in a fanfiction like this, Sirius reading Harry's will could lead to all sorts of emotional moments. Maybe Harry left something very important or personal to Sirius in the will. It could also trigger Sirius to take some actions that Harry might have hoped for, like protecting certain people or places. Since Sirius was Harry's godfather, this would be a very intense and significant moment in the story.
It depends on your taste. If you like fanfictions that explore deep emotional bonds and post - death scenarios in the Harry Potter universe, it could be great.
In such fanfictions, it often leads to intense emotional moments and revelations. Harry might be shocked or confused initially.
If Sirius reads fanfiction books, it would show a more modern and open - minded side of him. He could discover some really creative interpretations of the events and people in the wizarding world. Maybe he'd come across a fanfiction that gives a different take on his friendship with James Potter, and it could make him reflect on their past in a new light. Fanfiction has the power to expand the boundaries of the known story, and Sirius could be part of that expansion if he were to read it.
There are also fanfictions where Sirius catches them and instead of being angry, he is curious. Like in 'Sirius' Curiosity', he decides to observe them secretly for a while to figure out what their relationship really is, rather than jumping to any hasty judgments.
One great James Sirius Potter fanfiction is 'James Sirius Potter and the New Adventures at Hogwarts'. It beautifully portrays his character growing up in the post - Voldemort wizarding world. Another interesting one is 'The Adventures of James Sirius Potter: The Marauder's Legacy' which focuses on how he lives up to the Marauder's reputation. And 'James Sirius Potter: The Cursed Legacy' is also quite engaging as it weaves a complex plot around his life at Hogwarts.
One great Buckbeak and Sirius fanfiction is 'The Flight of Freedom'. It imagines Sirius bonding with Buckbeak during his time on the run. It beautifully depicts how Buckbeak could sense Sirius' innocence and loyalty, and they form an unbreakable bond as they evade the Ministry's capture. It's full of adventure and heartwarming moments.
One great Hermione and Sirius fanfiction is 'Time's Unraveling'. It has a really interesting plot where Hermione goes back in time and meets a younger Sirius. The character development is on point, and the way they interact is both exciting and a bit mysterious.
One great fanfiction could be 'The Adventures of Sirius Black's Niece'. It shows her journey at Hogwarts, making new friends and uncovering family secrets. The author really captures the essence of the wizarding world.
One reason could be Harry's impulsiveness. Harry often jumps into dangerous situations without thinking, and Sirius, being his godfather and having a protective nature, would shout at him to make him realize the risks. For instance, if Harry decides to go after a Death Eater alone.
Well, it might inspire Harry to explore his emotions more deeply and have a greater appreciation for literature. This could also potentially affect his relationships with others at Smeltings.