I’m on a dimension hopping kick rn so imagine an AU where Bruce, as a last ditch effort to save his son from a dying planet, sends 10-year-old Dick to a different universe. He’s done extensive research. He knew something was brewing with Darkseid, he knew he might need to do something drastic, so he found the best possible world to send his son.
In this alternate universe, Dick fell with the rest of the Flying Graysons. Bruce never had the chance to adopt him, it never even crossed his mind, because it was never even a possibility.
Having a child is something he never knew he was missing. He’s still friendly with Superman and Wonder Woman and he’s in the Justice League, but he’s more closed off. He doesn’t open up as much as he would have if he had a brightly colored little Robin at his side.
So when this terrified and frantic child appears in his cave one night after patrol, he doesn’t really know what to do.
“I have to go back!” Dick shouts at him, and he’s breathing heavily, he’s panicking. “I have to go back, I have to help him!”
“Alright, alright,” Bruce tries to calm him down. “Where did you come from?”
Bruce keeps trying to grab hold of him to keep him still and calm him down, but Dick keeps squirming away.
“I need to go home!” he cries. “Stop! Stop, I need to go home! You’re not my Bruce!”
Bruce freezes, because he’s still in his batsuit. He still has the cowl on. There’s no way this child should know who he is.
It takes a while, but he eventually figures out what’s going on. Once Dick calms down. Once Dick explains that his Bruce sent him away. That his Bruce came back from a mission with the JL, and he was hurt, he was hurt so so badly, and the world around them was crumbling. He wouldn’t let Dick help him. He grabbed a bag and gave it to Dick and sent him away.
This Bruce has no idea what to do. He has a distraught, panicking child in his cave. He can’t send him back to the world he just came from. What is he supposed to do with him?
He brings Dick upstairs to the manor and gives him a room. Well, Dick picks the room. He says it’s his. Bruce doesn’t argue.
Later that night, as he broods in the cave, he receives a transmission from the Bruce who sent Dick here. It’s a video explaining why he picked this universe, why he picked this Bruce. He pleads for him to take care of Dick. To keep him safe. He explains what’s going on in his universe, how it’s not going to survive much longer.
“You’ll love him, I promise you will,” this other Bruce tells him. “He’s the best kid from any universe. He deserves the best. He deserves to live. I know you’ll do right by him.”
And, well, shit. Now he’s gonna have to keep the kid. He just needs to figure out how to go about it from a legal standpoint. He can’t just say the kid appeared in his basement.
Maybe he’ll say Dick is the product of some fling from a decade ago. That’s plausible. That could work.
He’ll have to figure out the details with Dick. He’s sure the kid will have several opinions.