[Western Crossover] Arkham Knight and the Gotham Witch

At sixteen, the witch Lucy drank the Elixir of Immortality. To hide her identity, she left Gotham.

Years later, thinking she had found a cure, Lucy tried to return to human society. The first person she sought out was her friend Bruce, who had become a billionaire.

He did indeed give Lucy an impeccable new identity, though a few details were open to question.

"Actually, I'm older than you, but legally you're my adoptive father, and I have two brothers who aren't related to me by blood?"

Lucy decided that if she ever got the chance, she would kill the rotten old man standing in front of her.

She went on a long trip, and when she returned, she discovered that Bruce had secretly replaced a family member behind her back.

"Jason was this big when I left. How could he just disappear?"

//

Jason had been held captive by the Joker in the asylum for an entire year. Batman never came, but he did encounter Bruce's adopted daughter, the one who would hide in her room and secretly cry when she was hurt.

But she didn't recognize him. She simply stared at the dead Joker and asked:

"I just saw Robin a couple of days ago, so who are you?"

//

The Elixir of Immortality not only stops the body from growing, but also shackles the mind.

Lucy didn't want to remain an eternally growing-up-challenged monster, forever imprisoned in the darkness, so she made a deal with a demon.

== The timeline and character origins are a mess. This is a huge crossover stew.

== Don't argue with me. If you do, you're right.

== The greatness belongs to DC. The OOC is all mine.

== Extremely slow burn. The female lead is chaotic neutral.

== Not a conventional older woman/younger man romance, since the younger man grows up along the way.

== Check out my completed fic next door: "DC - Dolly Wants to Leave Gotham"

== I'll write at my own pace, and you can read at yours. Writing fueled by love.

Theme: Love never ends