A/N: Thank you so much for the amazing response I've received! I'll try and make the chapters longer. Thank you to:

Elizabeth Fayes

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CoffeeLovingOtaku: to answer your question; there will be mentions of the experiments but you'll have to wait to find out what's going on with it.

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Love you all.

Disclaimer: Cassandra Clare owns all.

Clary POV

I pulled out a dagger and pressed it to the mans neck. He had stopped struggling after I choked him a bit.

"Ok, lets start slow." I purred. "Recently you talked to a shadow hunter named Martin Rawhood. He told you some information that is crucial to me and my…business ." I said, searching for a word to describe the hunting I did for my father.

His eyes widened.

"I d-don't know what you're talking about!"

I forced steel into my eyes and cut him. Not immediately lethal but he would die from blood loss if it wasn't treated. He cried out, twisting. I responded my slamming his head into the floor.

"Of course you know!" I frowned. "You have about two minutes to tell me what you know before I gut you." I hissed.

James's eyes widened.

"Who the hell are you?" he whispered.

"The girl who will kill you if you don't tell me what I want to freaking know!"

Jace POV

The portal let us out outside a normal looking house. My father moved forward and drew a rune on the door to open it. He crept inside, along with Robert Lightwood, Alec, and me. Izzy had stayed behind with much protest after it was decided we didn't need so many people. Alec and I had shotgunned the next fight. I drew my daggers and stepped into the front room of the apartment. I stopped short at the sight in front of me. A man lying on the floor, a figure beside him, holding a knife to his neck. Not what I expected.

"Who the hell are you?" the man whispered.

"The girl who will kill you if you don't tell me what I want to freaking know!" I glanced wide-eyed at my companions and saw equal looks of shock. Her voice was young, but twisted by the anger in her words. She sounded around my age.

My father made a motion and we readied our weapons.

Clary POV

I heard it a second before I threw myself to the side. The dagger aiming for my shoulder hit James in his arm. I almost laughed and rolled to the side, pulling out my swords and making sure my hood still concealed my face. Fuck. I was facing the Institute shadow hunters.

"Nice throw." I said mockingly.

"What is your business here?" The blond haired man asked me.

I smirked and, instead of replying, hurled my dagger at him, before anyone could react my other dagger was flying , hitting the other man. He went down. Damn, the blond dogged. He lunged at me and I danced backward, blocking his sword with my own. All the while I was keeping an eye on the two teens. They had begun spreading out, probably to block my escape routes. Idiots. I hade my stele behind my back.

"You wont escape." The man said as he swung his sword.

I laughed, a high, cold sound. Blocked the swing.

"That's what you think."

As we spoke I started making the portal.

I drew my other dagger from the back of my belt and jumped forwards, at the same time, he jumped back and the dagger meant for his stomach, which would have been a killing shot, sank into his leg. Fuck.

I kicked his knee, most likely breaking and he dropped to the ground, groaning.. A hand grabbed my wrist and jerked me forward. I twisted ready to break my attackers arm but he anticipated me move and shoved me. I went sprawling into the couch, hitting my face. Pain pain pain. Grunting I pushed the feeling away as the boy grabbed my writs again. I looked up and caught a flash of golden hair and tawny eyes before I flipped him over. He landed on the table with a crash and I kicked his side before he could get up. A knife caught me in the arm and I hissed as it cut deep. Crap. I spun towards the attacker, my sword ready and saw the brown haired boy. The older male was with James. Complete the mission under any circumstances. My fathers voice rang in my head. Right. I wouldn't have to win this fight. Just had to finish the mission and go home.

As I was about to strike, hands grabbed me and pulled me back into a warm chest. I struggled but the boy behind me didn't relax his grip. Shit. I pulled my legs up to my chest and the boys grip loosened, at the same time I swung my sword around, hitting his chest. Not a deep cut, just enough to make him drop me.

I fell to the ground and immediately swung my leg out, catching him by surprise and send him crashing. I grabbed my last dagger and assessed the situation. The golden haired boy was behind me groaning and the blond man was unconscious, probably from pain. I couldn't see the brown haired boy. Damn. I back flipped over the couch and landed in a crouch next to James. I slammed the handle of my dagger into the Brown haired institute mans head and he slumped forward.

"All traitors die" I hissed at James before piercing his heart.

Smirking triumphantly, I edged towards the back of the room, the two teens, the only ones still standing were grouped near the door, Blondie was clutching his bleeding chest.

"Nice meeting you." I said sweetly, as I finished the portal and stepped through.

…

I landed at the door to the meeting room in the manor. My father and eight of his followers stared at me. Throwing back my hood, I walked forward towards my father.

"Father."

"Leave us." He commanded the others in the room, standing.

Slowly the room emptied and I faced the suddenly worried man before me. Of course he wouldn't let any others see his vulnerable side.

"Clarissa." He said slowly. His voice like glass " What in hells name happened?"

He took in my bloody arm, the bruise on my cheek, all too visible against my pale skin, and approached me.

As he drew healing runes on me, I explained.
"I got to the targets house as you told me to, got inside and started to question him. The fucker obviously had some kind of defense mechanism because before I got any answers the institutes turned up."

He swore.

"Yeah, they started the fight" Not true but I wasn't about to tell him that my actions caused a fight that botched my mission. "So I killed James and portalled back here."

"Did any of them see you?" He demanded, gripping my now healed arms.

I shook my head. " No, I made sure of it."

"Good." He muttered, embracing me quickly. "Go and train for the rest of the day."

"Yes, father."

Holding back my groan of despair, I left him to go to the training room. It was the last thing I felt like doing today but I knew it was his way of keeping me disciplined. I botched the mission. I had to train for five hours now. Crap.

Jace POV

"By the Angel" Izzy breathed staring at our various injuries. "This one girl did that?"

We were back at the institute; Robert and dad were in the infirmary beds with the rest of us clustered round. The rest of us being Hodge, Izzy, Alec, Maryse, Luke, Jonathan, and Jocelyn. Jocelyn was drawing an Iratze on my chest.

"I've never seen anyone move so fast. She was like…like. I cant even describe it." Robert shook his head. "Her fighting style isn't one I know."

Jonathan piped up "So you say she was wearing all black? You didn't see her face?"

"Nope." I said. "Nothing except her eyes. Bright green. Angel, the way she flipped me was crazy."

He laughed.

"I think he's in shock" Izzy whispered.

"Yes, the big, bad Jace is finally beaten in a fight. By a girl no less." Jon smirked.

"Shut up" I scowled. "She took me by surprise."

"She took everyone by surprise." My dad said wearily. He still looked mad, rubbing his injured leg. " We need to find her. I wonder what she wanted."

"She said something about 'traitor' before she killed that man." Alec said.

" But what could he have done to her? She can't have been older than nineteen."

"What do you mean? I thought you said you didn't see her face?" Luke questioned.

I grunted. "We didn't. But we heard her talk. She sounded young."

My dad growled, frustrated. "Ok let's look up all the female shadowhunters under the age of nineteen but older than fourteen. We'll go from there."

Hodge left to retrieve the book from the library.

A/N: R&R! I'd appreciate feedback. Wasn't sure about this chappie.