What do you imagine would happen if Zuko had been swept away by the current like in the comics and fire fans reactions? Like Ozai does canonically try and swim after him but Zuko just gets swept away.
Hello, @deadlyangelofpurity !!! (BTW love your art)
The fire family loved going to Ember Island every summer and they had never had a problem with the beach before so Ursa and Ozai don't really bat an eye when their three year old son run around on the beach and saves a turtle-crab. Ozai keeps an eye on him while Ursa is more focused on the one year old baby in front of her. When the giant waves comes up and washes Zuko away, Ozai darts into the water to save him and Ursa starts screaming for Zuko. Despite Ozai's best efforts the ocean claims the three year old before he can get to him. The guards arrive and look over as much of the ocean as they can, scanning the water for him, while others stay on land and look over the beaches. Ursa is inconsolable when they have to leave Ember Island without Zuko and holds Azula a little closer while Ozai is too stunned to speak. He could have sworn he was about to grab Zuko. How did he let his own son slip through his fingers? Ozai never made it a secret that he didn't like how weak Zuko's firebending was, but he was still his son. Ozai still cared for him and the thought that his own weakness is the reason his son is dead now is such a blow.
The Fire Nation mourns for the loss of the young prince. Azulon, who didn't care too much for Zuko, uses the opportunity to yell at Ozai and Ursa for failing to watch their son and letting him die. For a moment, he briefly considers removing Azula from their care but Ursa begs him not to and he decides against it. It's not said, but the family seems to understand that Ozai and Ursa aren't going to try and have another child. Ursa because she couldn't bear the thought of losing another child and Ozai because he doesn't want to risk failing a second child. Ursa grows more and more attached to Azula, her baby is now her only child and she showers her with as much affection as a mother possibly could. Ozai trains relentlessly, never letting himself be satisfied with his results. Another unspoken understanding is that they are never returning to Ember Island again. Ursa gives up her love for the Ember Island players and Ozai orders their family beach house torn down and everything sent to them at the palace. It's a very sad time for the family.
Meanwhile, Zuko's not doing so good. He get's swept out to see and survival---amazingly---by the skin of his teeth. While he's out at sea, a familiar group of pirates notice him and pick him up. They help him warm up and give him some food. Zuko's only three at the time, so they have no real reason or want to hurt him. On the ship, Zuko thinks the pirate life is amazing (Zuko: What's that? Captain: Our sail. It's the heart of any good ship. Zuko: What's that? Captain: Crow's nest. It allows us to see what's further out on the ocean. Zuko: Can I see? Captain, laughing: You sure you won't get scared. Zuko: I won't! I promise! Captain: Alright). That being said, the crew does try to ask the boy where he's from and when he says the Fire Nation palace, they come to an issue. On the one hand, they don't want to keep a three year old from his family. On the other hand, they will probably die or be locked up the second they step foot on Fire Nation soil. (Pirate: So we're keeping him. Captain: Of course we're keeping him. Pirate: What about when he asks about his family? Captain: He's three. Give him some time and he'll forget all about them. He'll make a fine pirate.) That's exactly what they do. They train Zuko do be a pirate and to use his bending to help them steal. Zuko becomes incredibly good at sneaking into nobles houses and stealing their stuff to bring back to the ship so the pirates can re-sell it. (Captain: Zuko! Where did you get that? Zuko, holding a ruby dragon statue: I stole it from some rich Earth Kingdom noble who said my outfit *the outfit the captain got for him* was disgusting. Never even knew I was in his house. Captain, shedding a tear: I have never been more proud of you!)
With Zuko "dead" and after Lu Ten dies, Ozai still makes the move to try and get Iroh's position because after Zuko died, Ozai has been pushing himself more and more into just about everything to make himself absolutely perfect (and make up for not saving Zuko that day). Azulon can't order Azula's death because he's running out of young heirs, so he sends Ozai into the war to actually experience what Iroh has gone through. Azula and Ursa remain at the palace where Azula starts her training as the crown princess but remains close to her mother's side (having grown up close to her and since Ursa is the only parent she has left). Azulon takes over Azula's training and puts her through intense sessions to try and make her into the perfect weapon. Ursa does what she can for her daughter, but she can't go against the Fire Lord....or can she? When Azula comes to Ursa one night, terrified because grandfather said he'd kill her if she didn't perfect her lightning strike by tomorrow and Azula doesn't know if she can, Ursa decides enough is enough and kills Azulon and, since no one else is around, she becomes the Fire Lady for the time being.
While that's going on, Ozai is in the war in the Earth Kingdom. He's not on the front lines, he's in the tents with the admirals and commanders but it's still a lot to witness after having grown up in the palace. One night, while some of the soldiers are staying in a coastal town, Ozai is woken up by the sound of someone messing around in one of the tents. Ozai goes to inspect it and, low and behold, it's Zuko (although Ozai doesn't recognize him). (Ozai: Who are you!? What you doing!? Zuko:...Would you believe I'm an inspector? Ozai, holding up fire: No. Zuko: Didn't think so. Catch me if you can, old man!) Ozai does catch him and is about to burn him until he sees Zuko's golden eyes and realizes who the thief is. Zuko is a teenager now so he doesn't really remember Ozai and runs away. Ozai, abandoning his soldiers, run after his son all the way back to the pirate ship. (Ozai: ZUKO! Zuko: I don't know who you think I am! But I'm not your son! Ozai: Yes, you are! Zuko: No! I'm not! I'm a pirate! My mom was some woman from the coastal towns and my dad passed away when I was little. I'm not- Captain: He's your father. Zuko: What? Captain: You....I think we have some explaining to do). Zuko listens to the captain's explanation and hears Ozai's side of the story. When all is said and done, the Captain believes that Zuko should go with his father back to the Fire Nation, so Zuko does (even if it is hard to leave the only family he really knows). Ozai and Zuko head off as soon as they can to return to a palace where Ursa is in charge and Azulon is dead.