Author's Note: Oh, hey there. If you're not aware of this Easter Egg and you don't like spoilers, you know how to backspace. Otherwise, I hope you enjoy!

"Hush, little baby, don't say a word..."

Harley paused, stroking the baby's soft hair. She hadn't known babies were so soft before, she didn't think. Had she ever touched a baby before she turned away from the rest of the world? She didn't remember, truly. But here was a nice, soft baby, and more importantly, hers. Hers, and Mr. J's.

"...mama's gonna kill for you the whole damn world..."

She liked her twist on the nursery rhyme better. Mockingbirds...who had written a line like that? What kind of baby would even want a mockingbird?

"Ridiculous, right, honey?" she cooed, her hand pausing as she took in the baby's face. When she had gone into labor, she had been terrified of what the doctors would find. But they hadn't been surprised at all by what the child had looked like. It was strange, really, how it had worked out. The Joker as its father, and Harley Quinn as its mother, and yet...it was a perfectly normal baby. A round face, red cheeks, and large eyes that looked up at its mama with admiration. Harley had taken it from the church the moment she was able to stand, and took it back to her hideout in the Steel Mill. She knew what would happen if she fell asleep with her baby in the care of those doctors. They'd take it away, send it back out into Gotham, and she would never see it again. No, if she was to stay in Arkham City, then she wanted at least to have her precious child with her, to keep him safe from anything that would dare harm him. It wasn't fair, she knew that. But she couldn't take the chance, either. It was all she had left of Mr. J. It was all she had left of herself, in fact.

She wondered who knew about her baby. The guys protecting her from the rest of the prison did, obviously, but who else? She figured if Bat-brain knew, he'd probably come and take it away from her, acting like some hero again and taking it out to some 'normal' family, whatever that meant...

"You're my baby, darling," she said aloud, smiling tearfully at the sleeping infant. "No one's gonna ever steal you from me. I'll kill anyone who tries. Hit 'em with a baseball bat and throw 'em into the smelting chamber..." She trailed off in a sing-song, wiping away the tears and hugging the baby closer to her chest.

The memories returned to her of the day she had realized she was pregnant. She had already been in Arkham with Mr. J, and for the first time in years, she had felt genuine fear. She knew that she wanted to have his baby, but in this mega-prison...how the hell was she planning on caring for it, and keeping it safe from all the awful people outside?

But Joker had promised her that they would find a way. He said once he got his cure, he would make sure she was kept safe and that her baby would always have a smile on its face. A real smile, too, he said, not some cut-on one like his. He had a real smile when he said it, though, and it had made Harley so happy...

The baby shifted in its sleep, stretching a tiny hand out towards its mother. Harley took it between two of her fingers, the tears falling freely as she looked down at it.

"It'll be okay, honey," she repeated, planting a kiss to its stubby fingers. "I'll keep you safe forever, you know." She stifled a sob, not wanting to wake up her little one. Being a mother had filled her with emotions she hadn't been aware of, emotions she hadn't known she was even capable of. Worry, inexplicable sadness...caring. She had loved Mr. J, just as she loved the baby, but with the baby, she would do everything in her power to make sure he was comfortable and out of harm's way, something she could never quite succeed at with Mr. J. If she had...he would still be alive.

She sighed again, trying to stop her tears. She knew what she had to do, but the prospect of doing so terrified her. She didn't want to, and she wasn't used to doing things she didn't want to do. Being with him gave her the security she had only gotten from Mr. J, and now she would give it up...?

She turned to the intercom next to her, pressing the button reluctantly and waiting for one of the guards to answer. As she waited, she tried her best to silence herself, refusing to give away that she was crying.

"What's up, Ms. Quinn?" the guard finally said.

"'Bout time, bozo," she said, trying to toughen herself up now. "Listen...I need you and some of the other guys to get me to the church tomorrow. Get a team together."

"Got it. Are you..." She could hear reluctance in his voice as well, and held her baby tighter as she spoke.

"Yeah, I'm taking him, too. You're gonna make sure no one lays a finger on my darling," she commanded, her voice quivering.

"...Understood. Have a good night, Ms. Quinn."

The moment she flicked the intercom off again, she finally gave in to her emotions, sobbing openly in the empty room. She didn't want it to be this way, dammit...but she knew that she wanted this baby to have a normal life, something she couldn't give herself or Mr. J. Something she couldn't give him if she was his mama.

"I'm sorry, darling. One day, I'll get out of this hellhole and come back for you," she promised, holding her hand under his head. "But for now, I'm gonna give you to a real nice family. And you're gonna have a real nice life. I know it." The baby's eyes opened suddenly, sleepy but content, and it cooed softly, squirming closer to Harley's stomach. Wherever his foster home ended up being would be perfect, she knew it. She would find a way to make it so, because she was his mama. She was.

"I love you, honey." She held him up to her face, planting a kiss on its nose. "Let's find you a good home."

She had never dreamed that she would ever say something like that.