(You're Batman's adopted daughter your parents died when you were four. They were killed, you were 10 when he adopted you. Flash was 12 when he got adopted by Batman describe what you look like. Anyways a mother with blond hair and dull green eyes with a cross necklace around her forearm. Baby in hand, she holds it over the edge about to drop her from a building. But Batman suddenly speaks up, surprising the mother Oh and Flash and Alfred are in the Batcave, Alfred giving Flash a massage for his cramped muscles and sore body)

Batman: Let me help you.

Girl: Huh!?. It's not my fault. I've given birth to the devil. It's the devil!

{She looks at the baby and to her, the baby has gray skin and horns in its eye sockets and a mouth with a fully functioning eyeball in it and it's looking around while roaring, but it doesn't actually look like that it's just a normal baby, the roaring she hears is actually the baby crying in reality, Batman walks towards them}

Batman: You're tired. Give me the baby.

{He stops in front of the mother}

Batman: You don't want to hurt her.

{She looks at the baby and gets scared and screams and throws it on instinct. Batman immediately goes after the baby and catches it. Using his grappling hook to swing them onto a bridge. Batman looks at the baby as he holds it in his arms. As the baby cries he hears a thud. A slightly surprised look on his face as he looks. He sees the mother on the ground eyes rolled in the top of her head, blood coming from her mouth. Someone running towards the mother. Batman looks at the baby and speaks to it as it cries}

Batman: I'm sorry.

{He looks at you. He gives the baby to Nightwing so he can deal with you. Knowing full well you don't take kindly to babies almost being killed.}

Nightwing: ...