The key elements are his circus background as part of the Flying Graysons, the death of his parents which led to his encounter with Batman, and his growth under Batman's guidance before becoming Nightwing.
Nightwing's origin is closely tied to Batman. Dick Grayson was a young acrobat in the Flying Graysons circus act. When his parents were killed by a criminal, Batman took him in. Dick grew up under Batman's tutelage, learning detective skills and combat. Eventually, he felt the need to step out of Batman's shadow and became Nightwing, with his own identity and territory in Blüdhaven.
In the 'nightwing origin graphic novel', Dick Grayson is the central figure as he is the one whose origin is being told. Batman is a major character as he has a huge influence on Dick's life, from training him as Robin to their complex relationship later. There are also appearances by other members of the Bat - family like Barbara Gordon (Batgirl) who has her own interactions with Dick. And of course, the villains he faces during his early days are also part of the story.
The 'nightwing origin graphic novel' is significant as it delves deep into the origin story of Nightwing. It shows how Dick Grayson, originally Robin, transitions into Nightwing. This origin helps fans understand his character growth, his motives, and how he becomes an independent hero apart from Batman.
One possible fanfic could involve a battle against a powerful villain. Nightwing might get injured while trying to protect Gotham. Batman then has to step in not only to defeat the villain but also to take care of Nightwing. He could use his advanced medical knowledge and resources in the Batcave to nurse Nightwing back to health.
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.
Nightwing is alive in the comics. He's had his share of challenges and close calls, but as of now, he continues to fight for justice and protect the people.
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.
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.
One of the top Nightwing stories is 'The Judas Contract'. It's a classic that delved deep into the Teen Titans' world and Nightwing's character. It had complex relationships and a great villain in Deathstroke.