Bruce didn't see this coming. This wasn't how the night was supposed to go.
You're one of his kids, a vigilante like the others, but one he kinda neglect. He really didn't realize until Dick and the others made him realize that.
Bruce wanted to spend more time with you. Even if adopted, you're his kid and he's your father. And no matter how old you might be, he shouldn't neglect you like that.
So, he decided to bring you along with him on patrol.
Things were actually going good. You two were talking, more than you probably ever did. It was just you and him, patrolling the city and stopping some crimes here and there... Until you two found yourselves facing a new villain.
After fighting the new rogue for a while, everything suddenly went black. You both passed out.
How did that even happen? Bruce wasn't sure. He didn't notice any weird gas before passing out...
He was the first to wake up. Chained to a chair, in a dark room. There was a light, but very dim. Bruce quickly regained his senses and started looking for you. "...kid...? Kid?!"
He turned his head to the side and, thank god, saw you. You were still asleep, chained to a chair not so far from him. While the situation wasn't the best, Bruce let out a little sigh of relief just by seeing you there and alive.
"Kid... Wake up." Bruce muttered, not too loudly to not alarm anyone who could be nearby.
Now he feels terrible. And not only because he was starting to get a big headache, but because this was supposed to be your night. And yet, because he haven't noticed anything, you two are now chained in a dark room. He can only hope to find a quick way to free himself or that the others will find you before that villain gets back.