It can be considered common. There are a large number of PJO fans out there, and fanfiction is a popular medium in fan communities. Since the official books have a set storyline, fanfiction offers a chance to expand on it, so many 'mortals' (fans) are attracted to it.
For demigods, it could either reinforce their existing views or introduce new perspectives. If a fanfiction delves deeper into a certain aspect of their world like the powers of a god, they might gain a new understanding. Mortals would have a more comprehensive view of the PJO world. They would learn about different characters and their backstories that might not be fully explored in the original books.
It could mean that ordinary people, those not directly involved in the creation of the Percy Jackson and the Olympians (PJO) universe, are exploring the fan - created stories. They might be seeking more adventures in that world, or just enjoying different interpretations of the characters.
The demigods could have a range of reactions. Some might enjoy seeing different interpretations of their world and relationships. For example, if a fanfiction focuses on a friendship that a demigod values, they might feel happy that others also find it interesting. Mortals would likely be excited. They would be immersed in the fantastical elements of the PJO universe as presented in the fanfiction, and it could inspire them to read the original books if they haven't already.
One great 'pjo avengers crossover fanfiction' is 'The Demigod Avengers'. It has an exciting plot where the demigods from Percy Jackson and the Olympians join forces with the Avengers. The character interactions are really well - written, like when Percy uses his water powers in a fight alongside Thor's lightning.
They might find it really interesting. It could be a strange experience for them to see their own world and adventures reimagined in a fan - made story set in a school environment. They might laugh at some of the creative liberties the fanfic author took or be impressed by how accurately some aspects were captured.
One great 'athena pjo fanfic' is 'Athena's Wisdom'. It really delves into Athena's character in the Percy Jackson universe. The author does a wonderful job of showing her wisdom and how she interacts with the other characters. It has some really interesting plot twists that keep you hooked from start to finish.
Percy would feel a mix of curiosity and amusement. He'd be curious about how others see his adventures and amused by the creative liberties taken. Annabeth might be a bit frustrated at times. She's so used to the facts and proper interpretations, so any inaccuracies in the fanfiction could irk her. Grover would simply feel flattered that people are interested enough in their story to write fanfiction.
They might be quite surprised. Some characters could be amused to see different interpretations of their adventures. For example, Percy might find it interesting how fans imagine his internal thoughts during the events in 'The Son of Neptune'.
Well, one reason people read PJO fanfic is that they want more of the Percy Jackson world. The official books can't cover every single idea or relationship. Fanfiction fills those gaps. It might also be that some readers enjoy the different writing styles of fanfic authors. They can find unique interpretations of the characters and settings, which adds to the allure of the PJO universe.