This is my first fan fiction. Please review to tell me how to improve. Disclaimer: Sadly, I do not own any characters from The Mortal Instruments or Heroes of Olympus.

Clary P.O.V.

Jace and I were walking out of Java Jones when we saw the two strange teenagers fighting none other than a giant duck demon.

"By the angel, Clary." Jace said whipping a seraph blade out of nowhere. "The devil has finally come to get me. Tell Alec I'm sorry for using his toothbrush."

"Malik" I muttered ignoring Jace. There was a raven-haired boy and a golden-haired girl wielding bronze weapons. She had never seen weapons quite like these before; they had a strange glow that seemed otherworldly.

"What kind of demon is that, Jace? I've never seen one like that before."

"I don't know, but all ducks are blood sucking cannibalistic beasts. I say we go before those mundanes get killed." With that he ran off toward the lumbering demon.

Without hesitation I sped after him. The boy was holding tight to the duck's neck trying not to get thrown off, and the girl was attacking the legs of the beast. Jace swiftly slid under its belly and sliced it open. The beat let out a horrible cry and tumbled over. I delivered the killing strike to the heart, and with that it vanished. Only then did we look at the two teenagers.

"Greek or Roman?" The blonde girl said.

"Huh?" Jace had obviously been expecting a thank you, and didn't know what to make of this question.

"Greek or roman?" The boy said repeating the girl's question. "It's really a simple question. You fight like a Greek but I've never seen weapons like those before."

"Your one to talk." I said putting my blade away. "What are those clunky things you were using?"

"Celestial bronze." The girl said putting away her dagger. "And I may be able to forgive you for calling our weapons clunky if you tell us who you are?"

Anabeth P.O.V.

Percy and the blond boy followed suit, and put away their weapons. The two strangers looked startled when riptide transformed back into a pen but didn't say anything.

"I'm Jace, and this is Clary. We're shadow hunters of the New York Institute." Jace said as if he were stating the weather. "And I'm guessing you aren't mondanes ether, are you?"

"I don't know what you mean by that, but what are shadow hunters?" I said.

"Not so quick there blondie, you haven't told us who you are yet. If we don't get answers, were leaving, and you won't be able to find us again." Said the short red head, pulling out some kind of metal pen.

"Hold up," Percy said turning toward the girl, "Did you really just call her 'blondie'?" That was my seaweed brain for you, always focusing on the unimportant things.

"Fine, we're leaving." She said. With that she drew some symbol on the ground and they both vanished.

Cliffhanger sorry! As I mentioned before, this is going to be my first fanfiction, so I didn't intend on making it all that long. As soon as I see that someone is interested I will continue, so please take a minute to drop a few words in the review box telling me to continue.