Since we have no details about the story, it could be a legend passed down in Atlantis. Maybe it's a story about a great hero from their past, and Mera is telling Arthur this story to inspire him or to give him some historical context that could be relevant to their current situation. It could also be a story about the magic or unique powers that exist in their world, which Arthur may need to understand better for some future task or challenge.
She might tell Arthur the story to make him understand something better. For example, if it's a story about Atlantis' history, she could be trying to make him more aware of his heritage and the significance of his role in their world. Or it could be a story of a past mistake that she doesn't want Arthur to repeat.
One great 'Aquaman Arthur and Mera Fanfic' is 'The Depths of Their Love'. It beautifully explores the relationship between Arthur and Mera. The author does an amazing job of delving into their characters, showing how they support each other through the various challenges in Atlantis. It's filled with vivid descriptions of the underwater world and their adventures together.
One idea could be a story where Arthur and Mera go on an adventure to a hidden underwater kingdom that has been forgotten by most. They could face challenges like ancient sea creatures and mysterious magic.
The writing style also matters. If the author can create a vivid and immersive world, it will draw the readers in. Using descriptive language to portray the underwater kingdom, the powers of Arthur and Mera, and their emotions towards each other will make for an excellent fanfic.
Their relationship would likely become more protective. Arthur would be more vigilant about Mera's safety and well - being, always making sure she is comfortable and secure.
One interesting Arthur Curry OC fanfiction could be about an OC who is a long - lost relative of Arthur Curry. This OC might have unique powers related to the sea that they discover while interacting with Arthur. Another could be a story where an OC is a scientist who is studying Arthur Curry and his abilities, and they end up on an unexpected adventure together.
One common theme could be the crossover aspect. Writers might explore how the two different universes collide. For example, how Arthur Curry's underwater world and Bella Swan's vampire - filled world interact.
Another theme might be the clash of cultures. Arthur Curry is from an underwater world, and Kal - El is from Krypton but raised on Earth. Their different backgrounds can lead to interesting stories about how they deal with each other's ways of life, values, and traditions. There could also be themes related to power and responsibility. Both characters have great powers, and fanfics might explore how they use or misuse them, and how they learn from each other in this regard. It's also possible that some fanfics focus on a love interest between the two characters, though this might be less common compared to the other themes.
On Archive of Our Own (AO3), there are likely some great Arthur Mera fanfic authors. You can search for their stories and then check out the other works by the writers who create engaging stories about them.