He could learn special combat skills. His dad, Poseidon, might teach him unique ways to use water powers in battle, like creating more powerful water whips or shields.
Percy could learn about his family's history and the secrets of the underwater world. Poseidon could share stories of ancient sea battles and the origin of their powers, which would give Percy a deeper understanding of his heritage. For example, he might learn about long - lost sea kingdoms and how their family was involved in them.
Maybe it's a training area on an isolated island. The island could be a place full of challenges, like rocky terrains and hidden caves. Here, Percy could learn both physical combat skills from his dad and also how to use the natural elements of the island, such as using the rocks as weapons or finding shelter in the caves during simulated battles.
He might face the challenge of overtraining or undertraining. Since he doesn't have a coach or a training partner to tell him when he's doing too much or too little, he could end up either exhausting himself or not making enough progress. In fanfiction, he could also struggle with loneliness. Training by himself means no one to share his frustrations or small victories with. This loneliness could potentially affect his mental state and in turn, his performance. Additionally, without feedback from others, he may develop bad habits in his training that could be hard to correct later on.
The environment itself is a big obstacle. Tartarus is a place of extreme darkness and chaos. It can mess with Percy's mind, making it difficult for him to focus on his training. The terrain is also treacherous, with rivers of fire and bottomless pits.
He could practice his combat skills by creating imaginary opponents. He can visualize different types of foes with various fighting styles and then strategize how to defeat them. For his physical strength, he might use the natural environment around him. For example, climbing trees or lifting rocks. When it comes to his powers, he could experiment in a safe area. If he has water - based powers, he can find a small pond or stream and practice controlling the water.
One possible plotline could be that Percy has to keep his fatherhood a secret to protect his child from the various threats in the demigod world. Maybe he discovers he has a child from an old relationship and has to balance his new role as a dad while still being a hero.
Another plotline could involve Percy facing challenges from the demigod community. Since the world of Percy Jackson has its own rules and norms, his transition might not be easily accepted. His dad could then step in and try to educate the other demigods about acceptance and love. Poseidon might call upon a council of the gods to set an example of tolerance, showing that even in the world of gods and demigods, everyone should be respected for who they are.
His training would likely be intense. He'd probably learn stealth techniques like how to move silently and blend into the shadows. Swordsmanship would be a key part of it too, as he already has some skills with a sword. And he'd be trained in hand - to - hand combat, learning different fighting styles. Maybe he'd also study poisons and antidotes, just in case he ever needed to use or counter them during his assassin - like missions.
His training would likely be intense. The Avengers could teach him combat skills like Captain America's hand - to - hand combat. Thor might show him how to handle a weapon like Mjolnir (even if he couldn't lift it fully). And Iron Man could introduce him to high - tech gadgets for battle. Also, Natasha could train him in espionage and stealth techniques.
Well, a common trope is the 'reconciliation' one. Since Percy has had a somewhat complex relationship with his dad in the original books, fanfictions often explore them mending their differences. There's also the 'godly inheritance' trope. Writers may delve into Percy inheriting more than just his dad's powers, like certain responsibilities or knowledge. Additionally, the 'mentor - mentee' relationship between them is often explored, with Poseidon teaching Percy more about the godly world and how to navigate it.
It's important because Percy can learn more about his past. His dad can tell him things that he doesn't know about his family or his powers.