One possibility is that the heroes would initially be in awe of Godzilla's sheer size and power. They might try to communicate with it using their unique powers related to the Greek gods. For example, if there's a hero with the power of telepathy, they could attempt to reach Godzilla's mind. However, Godzilla's primal nature might make it difficult to establish a proper connection. Another scenario could be that Godzilla mistakes the heroes for threats and attacks them. Then the heroes would have to combine their powers, like one hero creating a shield while another uses offensive magic, to fend off Godzilla's attacks.
The interaction would be complex. The heroes of Olympus have their own personalities and powers. Some might be afraid of Godzilla, while others would be more curious. For example, Leo, with his mechanical skills, might wonder if he could build something to either communicate with Godzilla or defend against it. On Godzilla's side, it doesn't have the same kind of intelligence as the demigods. It would respond to their presence based on its basic survival and territorial instincts. So there could be a lot of miscommunication and misunderstandings between the two groups at first.
Well, there could be some epic battles. The demigods from Heroes of Olympus have their own unique powers like Percy controlling water. The Avengers also have superpowers. Maybe they'd start off as enemies, not understanding each other's worlds. But then they could team up to fight a common, even more powerful enemy like a new, super - powerful god or a huge alien threat.
In this fanfiction, the heroes might team up with Marinette to fight a common enemy. Maybe they exchange their powers or skills to overcome challenges.
Well, perhaps there's a prophecy in both the Greek and Norse worlds that foretells the coming together of heroes from both sides. So, the characters from 'Heroes of Olympus' and 'Magnus Chase' meet up to figure out what this prophecy means. They initially have some misunderstandings due to the differences in their cultures and mythologies, but as they start to share their knowledge and skills, they realize they need to work together. They then find out that an ancient evil, which was once sealed away by the combined powers of the Greek and Norse gods, is starting to break free. And they are the only ones who can stop it by combining their powers and using the unique abilities of each character from both series.
Friendship and rivalry are quite common too. Some fanfics focus on the development of friendships between characters from the two groups. They might start off not trusting each other but gradually become close allies. On the other hand, rivalries can also be interesting, especially between characters who have similar powers or positions in their own mythologies. For instance, a powerful Egyptian magician might be in competition with a Greek demigod who has similar abilities. These themes add depth and excitement to the 'Kanes Meet the Heroes of Olympus' fanfiction.
In such a fanfiction, there could be a lot of chaos. The heroes, with their adult minds trapped in baby bodies, would struggle to communicate. They might still have their heroic instincts but be unable to act on them in the normal way. For example, Percy might get frustrated when he can't simply swim away from danger as he used to. Their friends would have to take on the role of caregivers, which would be quite a comical and challenging situation.
In this kind of fanfiction, perhaps the Rescue Heroes could be initially skeptical of the Daredevil Reader. But then, they might find that the Reader has unique skills or insights that can help them in their rescue missions. For example, the Reader could have an uncanny ability to sense danger in places that are hard to access, guiding the Rescue Heroes to save people trapped there.
Well, some popular fanfiction in this category might focus on the adventures that the characters from both series go on together. Maybe they team up to fight a common enemy or explore a new magical realm. Another aspect could be the relationships that form between the Kanes and the Heroes of Olympus, like new friendships or rivalries. You could also check out Archive of Our Own (AO3) as it has a large collection of fanfiction, and there's a good chance of finding some excellent 'Kanes Meet the Heroes of Olympus' fanfiction there.
One possible plot could be that Izuku, while on a training mission in an uninhabited area, stumbles upon Godzilla. At first, he's terrified but then realizes Godzilla doesn't seem to be immediately hostile. Izuku tries to communicate using his knowledge of quirks and signals. Godzilla, in turn, seems to recognize Izuku's heroic nature and they form an unlikely alliance to protect the area from a common threat, like a group of villains who want to use Godzilla's power for evil.
Well, it could be about the heroes going back to prevent a great disaster that originally happened in the past. For example, they might try to stop the rise of a powerful enemy before it got out of control.