One common theme is the character's relationships. It could be her romantic relationships, like with other superheroes or civilians. Another theme is her growth as a character, perhaps in terms of her skills or her role within the superhero community.
He might try to reason with kaldur. If Nightwing can make kaldur see that what he's doing is wrong or that there are better ways to achieve his goals, kaldur could let him go. Nightwing is known for his charisma and intelligence in such situations.
He might try to engage Slade in conversation. Nightwing is smart and could be looking for a way to psychologically get an edge over Slade. He could be probing for Slade's motives, hoping to find a way to turn the situation around. He might also be stalling for time, waiting for the right moment to make his move.
Batman is the most likely. He has a strong bond with Nightwing and would do anything to save him. His skills in combat and detective work would be crucial in finding and freeing Nightwing.
Nightwing would initially be defiant. He's a highly trained fighter and detective in his own right. So, he won't cower in front of the Joker. He'll probably try to size up the situation, looking for any weaknesses in his captivity and the Joker's plan.
You could start by following some DC Comics fan groups on Facebook. Sometimes, group members share links to interesting fanfiction, including those centered around a female version of Nightwing. Additionally, Wattpad has a diverse collection of fan - written stories, so it's worth checking for female Nightwing fanfiction as well.
Often, female characters are used to show different aspects of Nightwing's character. If he is a ladies' man, the female characters he interacts with can highlight his good qualities like his kindness and protectiveness, or his flaws such as his sometimes over - confident nature. They are an important part of the fanfiction's exploration of Nightwing's identity as a ladies' man.
Batman could be a main character. Since Nightwing was trained by Batman, in a baby Nightwing fanfiction, Batman could be the one taking care of him, teaching him basic skills, and protecting him from the threats of Gotham.
Captain America could be a strong ally for Nightwing. Captain America is a great leader and has a strong sense of justice. Nightwing, coming from Gotham, also has a deep - rooted sense of right and wrong. They could lead the Avengers together in a battle, with Captain America providing the strategic leadership and Nightwing using his agility and combat skills to execute the plans on the ground.
It can symbolize protection. Batman is the mentor, and when he carries Nightwing, it shows his instinct to keep Nightwing safe from harm, whether it's physical harm from villains or other threats.