Well, friendship is a big theme. Despite their differences, the characters from both universes can form deep and meaningful friendships in fanfiction. There's also the theme of adventure. Combining the two worlds means there are all kinds of new adventures to be had. And the concept of heroism is often explored. Both the Avengers and the hobbits are heroes in their own ways, and fanfictions can show how they can inspire each other to be even better heroes.
One common theme is the combination of magic and adventure. Just like in the original 'The Hobbit', there are quests and challenges, but the addition of fairies brings in a new level of magic. For instance, the fairies might use their magic to aid the characters in their travels or battles.
Identity is also a big theme. When a hobbit becomes a vampire or vice versa, or when they interact closely, they question their own identities. For example, a hobbit vampire may struggle with its newfound bloodlust while still having the hobbit's love for home and comfort. This internal conflict makes for an interesting read. It's often explored in great detail in these fanfictions.
One common theme is friendship. Female hobbits often form strong bonds with other characters in the fanfiction. Another theme is adventure. They go on quests and face challenges just like the male hobbits in the original stories. And of course, there's the theme of home. The female hobbits usually have a deep connection to the Shire and their hobbit - holes.
A third common theme is the struggle against evil. Just as in the original story, in the fanfictions, Kili and the OC often find themselves up against various forms of evil, like orcs or dark wizards. This adds an element of danger and excitement to the story, and also shows how they rely on each other's skills and strengths to overcome these challenges.
One common theme is the clash of different cultures. The hobbits have their own simple and earthy culture from Middle - earth, while the wizarding world of Harry Potter has a more complex and formal magical society.
One common theme is changing the past. In many hobbit time travel fanfictions, characters go back in time with the intention of changing certain events, either for the better or worse. For example, they might try to prevent a great battle or save a particular character.
Mystery is also a big theme. Since Sherlock is known for solving mysteries, fanfiction often has him using his skills to solve some big mystery in Middle - earth, like a disappearance or a strange occurrence that's affecting the Hobbits or the whole of Middle - earth.
Well, a major theme is the impact of knowledge from the future on the past. In many 'The Hobbit Time Travel Fanfiction' works, when a character travels back in time with knowledge of future events, it causes a great deal of chaos and also opportunities for change. Another common theme is the rediscovery of forgotten lore. Time travel often leads characters to parts of Middle - earth's history that were lost or forgotten. And of course, there's the theme of friendship tested by time. When characters are thrown into different time periods, their relationships with their friends are put to the test as they face new challenges.
One common theme is the elf - oc's struggle for acceptance. Since they are original characters, they often have to prove themselves in the established world of 'The Hobbit'.
One common theme is redemption. Just like in many stories, the hobbits often try to redeem themselves from whatever has made their hearts full of ashes, be it a past mistake or a great loss.