The story could have a big impact on the magic in Narnia. Maybe the baby has a unique connection to the magic of the land, and its presence could either strengthen or disrupt the existing magical balance. Also, the idea of a new heir could inspire new quests and adventures, as various characters in Narnia would want to be part of the baby's life and future.
In the Narnia universe, this would be a huge event. For one, it would likely change the social fabric. There would be new traditions and expectations surrounding the royal family. The baby could also attract the attention of old enemies or new threats. The fanfiction could show how Prince Caspian and Susan navigate these political and dangerous waters while raising their child. They would need to ensure the baby's safety while also considering the future of Narnia as a whole. Their decisions regarding the baby would shape not only their family but also the entire Narnia universe.
One possibility could be that the story focuses on how they adjust to parenthood in the magical world. They might face challenges from those who oppose their union or from the powers that be in Narnia. The baby could also have some special powers or a great destiny.
Another theme could be the integration of Susan's human world values and Caspian's Narnian ways when it comes to parenting. This can lead to interesting cultural clashes and reconciliations. And of course, the theme of love is always present, not just the love between Susan and Caspian but also their love for their baby and how it shapes their actions and decisions in the story.
One possible plot could be that they face challenges in Narnia while Susan is pregnant. Maybe there are threats to the kingdom that they have to deal with together, all while preparing for the arrival of their child. Caspian might be extra protective of Susan, and they could rely on the help of their friends in Narnia.
Susan could develop into a more nurturing figure. Since she's pregnant, she might become more in tune with the needs of others in Narnia, not just her own family. Caspian, on the other hand, might grow in his sense of responsibility. He now has a family to protect, so he may make different decisions regarding the kingdom.
The relationship can be developed through shared adventures. For example, they could be on a mission to retrieve a lost magical artifact. During this journey, they rely on each other's skills and start to respect and admire one another more deeply.
By having them go on adventures together. As they face perils like battles against dark creatures or solving mysteries in Narnia, they'll learn more about each other and their relationship can grow.
You can try fanfiction websites like Archive of Our Own. It has a large collection of fanfictions, and there's a good chance you'll find some Caspian and Susan baby fanfiction there.
One popular Caspian and Susan baby fanfiction might be the one where they raise their baby in a magical forest. It shows their love for each other and how they pass on their values to the child.
I'm not sure about specific 'Susan and Caspian baby fanfiction' off the top of my head. However, fanfiction communities often have forums or groups dedicated to Narnia - related stories. You could join those and ask for recommendations. Maybe someone has already compiled a list of great fanfictions about this particular scenario.
The impact would be significant. In the Naruto universe, a baby from Naruto and Sakura would symbolize a new hope. Since Naruto is a hero and Sakura is a strong kunoichi, their child would be expected to carry on their legacies. Politically, it could strengthen the bonds between different villages. If the baby shows great potential, other villages might try to form alliances through marriage or other means in the future. Emotionally, it would be a big deal for their friends like Sasuke, who might see it as a sign of a new era of peace and stability.