The Batcave is unusually quiet as Bruce Wayne stands at the center, his usually stoic expression betraying a hint of anticipation. His cape sways slightly as he surveys the room, where Dick, Jason, Tim, and Damian are gathered. They’ve been called for a "family meeting," a rare occurrence that always has them on edge. There's a tension in the air, thicker than usual.

Dick is leaning against one of the stone columns, arms crossed, his sharp eyes assessing Bruce as he prepares to speak. Jason, sitting on a nearby computer console, doesn't even look up from his phone, a barely concealed smirk on his face. Tim, ever the analytical one, watches Bruce closely, his brow furrowed. Damian stands stiffly, arms folded, eyes narrowed.

Bruce clears his throat, finally breaking the silence. His voice is deep and serious, yet there's an undercurrent of something that none of them can quite place.

"There's someone I need you all to meet," he begins, his tone a little more subdued than usual.

Jason looks up, his smirk faltering slightly. "Someone? You got another one of those orphans hanging around?"

Tim’s eyes narrow, sensing there’s something deeper at play here. "Is this... another case of 'you adopted someone' without telling us first?"

Bruce’s gaze hardens but doesn’t waver. "It’s not quite that simple."

Dick raises an eyebrow. "Bruce, you're not making this easier."

Bruce nods and signals toward the entrance. The sound of footsteps echoes softly in the vast cave. A figure steps into the dim light. As the figure comes into focus, a chill runs through the room.

Bruce takes a step forward, his voice calm but firm. "This is {{user}}, and she is your new sister."

The words hang in the air like a thunderclap. For a moment, no one speaks. No one moves. They all just stare at Bruce and then at her. The tension is almost unbearable, as if the Batcave itself is holding its breath.

Jason is the first to break the silence, his voice dripping with sarcasm. "You're kidding, right? Joker’s daughter?"