This is a new story and my first YJ fanfic, so don't hate on me too much if I mess up, please tell me if I do!

Chapter One

My name is Josephine Keeper, but I prefer JoJo - that means I'll gut you like a fish if you call me Josephine. I'm known by another name. The Black Cat.

I'm a big time thief. You know when you're going to be robbed by me. I send you a calling card. A drawing of a black cat. A simple little drawing that you can tell what the picture is. After the first twenty-five robberies I became a big time thief and stole the 'Mona Lisa' for a big art lover. He was put in jail when it became known he had the 'Mona Lisa' in his possession. I got away with the half million, he was sent to jail, and the painting was returned to the museum.

Now, I was heading for Gotham City. I was going to steal a very large, and very precious black ruby. It wasn't truly black, it was just the darkest, deepest red that it looked...well, black. It was thirty-one karate ruby, too. It was worth a lot more than the 'Mona Lisa.' I can tell you that without a hint of doubt.

My only problem about the black ruby is Batman, his side-kick Robin, and Nightwing. I've dealt with a couple of heroes. I ran into Flash once, in Vancouver. Nearly got caught, too. Managed to slip away in a second's notice, though. He was pretty peeved about that. That was when I became a world-wide known thief. I'm pretty proud of that.

It's not really my fault that I can't help myself when I want something and just...you know, take it. I'm a kleptomaniac, I just have to steal. I start to feel guilty when I don't steal for a day or two.

I was excited. And nervous, definitely nervous. I was going against the Batman! I shook my head furiously. Don't think like that, not before a gig. I told myself. I took a deep breath and began to suit up.

I pulled on my cat-suit - a full body, black leather suit - once that was zipped up and situated I pulled on my knee-high combat boots and laced them up. I scrounged around a bit for my utility belt. I turned to the little table that was in my motel room. I placed my two, twin daggers in the holsters in my boots. I strapped on my thigh holster with my Glock .45, loaded and ready to shoot on my right leg. I pulled on my hand gloves with little glass claws. The last thing I did was pull my blonde hair up and my cat mask over my head.

It was a full mask that covered your entire head with a visor that hid my eyes. I had it customized so that their were large cat ears on the top of it and the visor had night vision. I had a special mouth-and-nose cup that protected my lungs from harmful gases that would kill me or knock me unconscious, and helped me breath under water - cool, right? My dad got it for me when I turned fifteen, a couple of months before he died. I stared at myself in the full body mirror.

I was eighteen years old. My father, Joseph Keeper - or, The Keeper - had been the world's most succesful thief. He died at the age of fifty-three a couple of years back, he taught me everything I knew about thieving. His dying words to me was 'I'm proud of you, my little Kitten.' My green eyes began to tear up behind the visor. I got lucky and received my father's beautiful, bright green eyes, and my mother's - I assume - light blonde hair.

I took another deep breath and cleared my head. It's time to steal a ruby that will make millions on the black market. I disappeared out the window and soon found myself on the roof of the show room. It was light and filled with laughing men and women dressed in fine garments. My 'cat' senses tingled and the hairs on the back of my neck stood on end. I grinned softly and turned to find Nightwing crouch at the edge of the building. His face an impassive mask. I admit it, I felt insulted that Batman hadn't come.

"Hello, Nightwing, I presume?" I inquired lightly, as if I wasn't about to commit a capital crime. A tiny - very tiny - smirk played at the corners of his mouth.

"Yes, and you are the Black Cat." He said in a cool voice. He stood up and watched me, observed me.

"So, is Batman here, or does he think I'm not good enough so he sends a rookie to bag me?" I asked as I leaned against the glass lucidly. My cat nails clicked against the window.

"Actually, Batman's caught up with some...unfinished business with an old 'acquaintance'." he said grimly, scowling at the 'rookie' comment.

"Oh! Let me guess, it's the Joker." I said in mock excitement, "Or maybe that plant lady. Obviously, since I'm just some little cat burglar. Nothing exciting." yes, I was pouting like a child over the better super hero didn't come. But, this was my Gotham raid! I wanted a challenge that would prove to myself that I was just as good as my father was in his youth. If that meant going up against Batman, then Hell! I was going to pout like a child. Nightwing gave me the 'What the Hell?' look.

"That is none of your business. Now, we can do this my way, or the hard way." I huffed and lunged at him. He was bigger than I, therefore he was stronger than me. He pushed me down and I wrapped my legs around his waist and flipped so I was on top. I balled my fist and slammed it against the glass just as he moved his head. I growled softly and racked my glass claws against his cheek. Deep enough to leave scars in the future. He shoved me off and held my wrists above me head.

"So, you haven't hit me yet, scared?" I grunted as he straddled my waist. I squirmed. My claw scraped against the backs of his hands and he jerked back at the cold sensation. I slammed my body against his and we body slammed the glass. Bad idea, JoJo. The glass shattered at the combination of our weight and our force sending us falling into the screaming crowd below us.

I watched as my life flashed before my life.

The first time I pick pocketed someone...

My tenth birthday when my father gave me my first mask...

When I was thirteen and had climbed to far up a tree and the branch had snapped, sending me crashing into the hard earth below.

The day my father told me he was proud...

Then I watched as Nightwing shot some doo-hickey of his and saved our skins. The crowd had cleared out, probably to get out of Nightwing's way, in the ten or fifteen seconds. He lowered us to the ground. I was shaking. I didn't notice it until I pried my claws out of the fabric of his uniform. I took in a shuddering breath.

Then I was pushed against the wall. I wrapped one gloved hand around Nightwing's jugular and he froze. I pressed my claws into his neck and pressed him back. I pulled out my Glock and aimed at him.

"Turn around." I commanded, he did as he was told and I pulled out some nylon plastic ties and tied his wrists behind his back. I had to hurry, he probably was almost out of them. I smashed the glass cover and shoved the ruby into my suit. I took my back up route since my rope and harness were on the roof.

I burst out into the back alleyway and I pressed myself into the darkness. I disappeared and watched in amusement as Nightwing entered the alleyway. He cursed under his breath.

Then, lo and behold, Batman and his runt swooped in.

"Youch! She must have a set of claws on her to have left marks like that." Robin said wincing. Nightwing reached up and brushed a hand over his bloody cheek. He frowned and pulled out a little device. I couldn't really see it.

"I managed to attach a bug on her wrist before she pointed he gun at my face." Nightwing said, "I think the Black Cat has something against you, Batman, she seemed pretty eager to fight you." my eyes widened in shock. He bugged me! I patted myself down silently, but it was too late, "She's still here!" damn! As if I had screamed they turned to me.

In a flash, Batman had me pressed against the brick wall. I punched him and he stumbled back. I darted forward and used Robin as a springboard. I landed on the brick wall and sprinted and leapt onto the neighboring building. I knew they were on my tail. I didn't have time to falter. I tried to ditch them at the harbour. But I only ended up with Kid Flash on my hide, too!

"God dammit!" I cursed. Then I got an idea. I pretty dumb one, but it might work. I sprinted down the dock and dove into the frigid ice water. Hopefully, it would kill the buggie, and I would lose the heroes. I swam under the dock until I was hidden under the shadow of a big yacht. I took slow, deep breaths. Thank goodness I upgraded my gun so it was water proof, along with my other electronics. I started to pat myself down until I found the little tracker on my right wrist. I crushed it and let it drift away in the current.

I swam about half a mile to the west and crawled out onto the shore. I lay on the beach for a moment, just to rest. I jumped when a cold voice spoke from the shadows.

"Black Cat, you are under arrest for the theft of the Black Ruby." I stood and tensed as Batman, Robin, Kid Flash, Black Canary, and Nightwing circled me. I was exhausted. But I was too far in the game to give up now. I growled.

"Not tonight, you won't get me." I sounded tired, geez. Batman remained cool along with Robin and Nightwing as Kid Flash smirked. Faster than they realised, I jabbed my fist forward and smashed Kid Flash's nose in. He stumbled back onto his butt and held his broken nose and blood stained his yellow and red costume. I threw myself at Black Canary and managed to get her down before Batman, Robin and Nightwing managed to hold me down.

Batman jerked my cat mask off and revealed my identity. My green eyes dared them to say something, anything, as they put a muffler over my mouth and high-tech cuffs on my wrists and ankles.

"JoJo, I expected more from you. I'm disappointed that you followed your father's footsteps." Black Canary sighed. I'm not surprised she knows of my existence. Her and Dad had a lot of run ins. I glared at her.

"Take us to the Cave, Nightwing, Robin." Batman said. Not at all deterred by the mention my name.

So! What did you think? Should I continue? I really like this story! I think it's pretty AWESOMAZING!