One common theme is friendship. Percival and Merlin often form a strong bond in these stories, relying on each other in times of trouble. For example, in many fanfictions, Percival stands by Merlin when his magic is discovered by others.
Friendship is a very common theme. Since they are both in Camelot, their bond as friends is often explored. Another common theme is loyalty. Percival is known for his loyalty, and this is often emphasized in fanfiction in relation to his relationship with Merlin.
Friendship is a major theme. Percival's actions show his deep bond with Merlin. He doesn't care about Merlin's secrets (like his magic in many cases), he just wants to keep him safe.
Friendship is a very common theme. Percival and Merlin are often shown as having a strong bond in fanfictions. Another theme is loyalty, especially Percival's loyalty towards Merlin and vice versa. They are also depicted as defenders of Camelot together, so the theme of protecting Camelot is quite common as well.
One common theme is friendship. They often start as friends and their bond grows stronger over time. For example, in many fics, they rely on each other during difficult times.
One common theme is redemption. Given his actions in the 'Fantastic Beasts' series, many fanfictions explore his journey to make amends for what he has done.
One great Merlin Percival fanfiction is 'The Quest Together'. It focuses on their adventures side by side, exploring how their friendship grows during various challenges. It has some really cool action scenes.
Well, there are several common themes. Unity in the face of challenges is a big one. Whether it's fighting against a common enemy or dealing with personal issues, they stand together. Another theme is the discovery of new sides of each other. As they are married, they get to know parts of each other that they didn't before. And of course, there's the theme of growth. Both Sonic and Percival grow as individuals and as a couple in these fanfictions.
There are various ways Merlin could be injured in fanfiction involving Gwaine and Percival. He might be injured while exploring an ancient and dangerous place. Gwaine and Percival are with him, but they don't anticipate all the traps. Merlin, being the more magically inclined, tries to disarm a magical trap but miscalculates, and it backfires, injuring him. Fanfiction writers like to play with these kinds of unexpected twists to keep the story interesting.
One great fanfiction could be where Percival uses his strength to shield Merlin from a group of bandits. He stands tall, his sword at the ready, while Merlin casts spells from behind him to aid in the fight.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, including many about Merlin and Percival. Just use the search bar and type in 'Merlin Percival' and you'll get a bunch of results.