Bilbo might adapt by using his wits. He's always been a clever hobbit. In an earlier time period, he could use his knowledge of future events to his advantage. For example, if he travels to a time before the discovery of certain paths in Middle - earth, he could be the one to find them first, which would help him in his quest to destroy the Ring.
One great Bilbo Baggins time travel fanfiction is 'Bilbo's Unexpected Journeys Through Time'. It has Bilbo traveling to different eras in Middle - earth's history. He meets his ancestors and gets involved in events that shape the future of the Shire. The author does a wonderful job of keeping Bilbo's character true to the original while adding the exciting element of time travel.
There's also 'Fem Bilbo's Time - Twisted Adventure'. In this one, fem Bilbo's time travel takes her not only to different points in Middle - earth's history but also to some alternate versions of events. The story really plays with the concept of how her being female might change things in a male - dominated world like Middle - earth.
Perhaps when Bilbo travels back in time, he finds that the Ring has an unexpected origin or connection to other powerful artifacts. This could lead to a whole new set of challenges and adventures as he has to deal with these new revelations while still trying to destroy the Ring. For example, he might find that the Ring is part of a set of items that need to be dealt with together in a specific order.
One common theme is redemption. For example, if in the original story a character made a mistake, through time travel, they get a chance to correct it. Another theme is the exploration of their relationship. In different time periods, Bilbo and Thorin may develop a deeper understanding of each other.
Frodo could be one. Since he was also closely associated with the ring in the original story, he might play a role in this fanfic, perhaps as a supporter or someone who has doubts about Bilbo's ability to destroy the ring.
One popular theme is changing the past. In many fanfictions, Bilbo tries to alter certain events in Middle - earth's history through time travel. Another theme is exploration. He travels to different times and discovers new places and cultures. For example, he might visit the ancient dwarven kingdoms at their peak.
The idea of a female Bilbo time traveling is fascinating because it allows for a fresh take on the well - known story. It can change the dynamics of relationships. For instance, in a traditional 'The Hobbit' story, Bilbo's interactions with male characters are based on male - male camaraderie. But with fem Bilbo, there could be a different kind of chemistry, like potential romantic interests that were not there before.
Bilbo might become more adventurous and less home - bound. His time - traveling experiences could make him bolder. For instance, he might be more willing to take risks in new situations. Aragorn, in contrast, could gain a deeper understanding of the long - term consequences of his actions. He would see how different choices in the past have led to the present situation in Middle - earth.
One possible plotline could be that Bilbo and Aragorn are sent back in time to the founding of Gondor. They use their knowledge from the future to help shape the city's early days. For example, Aragorn might introduce advanced combat strategies, and Bilbo could offer insights on building strong alliances through his hobbit diplomacy skills.