One common theme is the exploration of Hogwarts' history. Since the founders are involved, these fanfics often dig into the secrets and legacies of the school. Another theme is the growth and change of the characters. For example, Draco might move away from his pure - blood supremacist views. And of course, friendship (or the building of it) among Harry, Hermione, Neville, and Draco is also a big theme as they have to work together in many of these stories.
A common theme is the struggle between good and evil in a different context. Given the complex relationships between the characters, it's not always clear - cut. They might have to deal with dark forces that are related to the founders' times. Also, the theme of unity despite differences. Harry, Hermione, Neville, and Draco come from different backgrounds and have different beliefs, but they have to find a way to be united, especially when facing challenges related to the founders' legacies.
There's a fanfic called 'Heirs of the Past'. In this one, the characters are brought together in a rather unexpected way. Harry, Hermione, Neville, and Draco have to work together to face a new threat that seems to be related to the founders. It's full of mystery and some great character development, especially for Draco who has to re - evaluate his beliefs and alliances.
One common theme is friendship. They often support each other through tough times at Hogwarts. For example, Neville might help Hermione when she's overworking herself with studies, and Hermione can give Neville confidence in his magical abilities.
One common theme is time - travel. Often, Harry and Hermione are sent back in time to interact with the founders. Another theme is the sharing of modern magic knowledge with the founders. For instance, they might introduce spells that were developed later. Also, the theme of changing the course of Hogwarts' history is quite common, like influencing the house system or the way magic is taught at Hogwarts.
One common theme is redemption. Draco often has a chance to redeem himself and form a closer bond with Harry and Neville. Another theme is friendship across house divides. Since they are from different houses, their growing friendship is a popular plot point.
One common theme is the struggle between friendship and romantic love. Harry and Hermione have a strong friendship, and when Draco enters the picture as a potential love interest for Hermione, it challenges that friendship. Another theme is the idea of redemption. Draco often has a chance to show a different side of himself in these fanfics, moving away from his traditional Slytherin - ish behavior.
Forbidden love is also a big theme. Given their history of enmity during their Hogwarts years, their relationship is seen as something that should not be. But that very aspect makes it all the more exciting in fanfics. Writers play with this idea, creating tension and drama as Draco and Hermione navigate their feelings in secret.
Many fanfics also focus on Neville's connection to Hogwarts. Since he has such a deep love for the school, stories often explore how he protects it or discovers new secrets within its walls. This connection is a way to show his loyalty and his place in the wizarding world. It can also be a way to bring in elements of the school's history and magic that were not fully explored in the original series.
One common theme is the struggle between pride and affection. Draco's family pride often clashes with his growing feelings for Hermione, leading to jealousy when he sees her with others. For example, in many fanfics, he gets jealous when Hermione is friendly with Harry or Ron.
One common theme is redemption. Draco often has to atone for his past actions and Hermione helps him in that journey within the context of their marriage. Another theme is the breaking of social barriers, as their union goes against the traditional pure - blood/muggle - born divide in the wizarding world. Also, love conquering differences is a big theme, showing that despite their initial differences in beliefs and backgrounds, they can have a loving marriage.
Overcoming differences is also very common. Since they come from different backgrounds in the wizarding world, they have to work through their differences in values, upbringing, and social circles. For example, Hermione's Muggle - born status and Draco's pure - blood elitism. In many fanfics, they learn to accept and love each other despite these differences. It's a journey of self - discovery for both of them.