A/N: Hey guys! This is my first crossover, so it might not be that good. I saw that most of the crossovers had Percy and some demigods meet Harry Ron and Hermione, so I decided to write something different. I don't mean that offensively; a lot of the fics out there are AMAZING! I just wanted to try something different… please please please review and tell me what you think of the story, all kinds of reviews are perfectly welcome! This story has my OC as one of the main characters too, because I really like writing stories with OCs. Please tell me what you guys think of my character and my story! It means a lot to me, it really does. I'm sorry in advance if this chapter is boring, but please review, and I'll try to make the others better! *grins*

Dis.: I'm only gonna say this once. I don't own Percy Jackson and the Olympians, or Harry Potter. They belong to Rick Riordan and J. K. Rowling respectively. I don't have that genius of a mind. They do.

~.~.~.~.

James:

I lumbered into the forest, my fingers clutching the lamp I held. Beside me, my cousin Rose Weasley tripped on a vine, then steadied herself by taking the support of a low tree branch. All around us, the sounds of the forest had ceased, with the occasional chirp of a cricket, or the hoot of an owl. The eeriness was further increased by the deathly darkness of the night sky, which was almost devoid of stars tonight.

"Honestly James! You're sixteen, and you didn't have enough sense to turn down that stupid dare Trevor gave you!" Rose reprimanded. I grinned, "I'm a Gryffindor Rose. I don't turn down dares from Slytherins."

I walked ahead, leaving her huffing behind me. "If you're too chicken, you could always go back and tell Trevor and his gang that you couldn't, how did he put it again? Ah, yes. You couldn't 'hack it'." I called back. After a moment, I could hear her footsteps following me, as she caught up.

"Fine, but the moment I get back-" She started, but I cut her off. "Shh…" I said, practically in a whisper. I held up my hand for her to be quiet, and she knew me well enough not to argue.

"What is it?" she asked, looking around for danger. I ignored her, listening intently. A moment ago I thought I had heard voices, but now the silence of the forest had returned.

"James, I'm serious. We really should go back. This is way too freaky." Rose commented. I nodded, realizing now that a stupid dare wasn't worth this. Besides, Trevor had dared me to go into the forbidden forest; he hadn't specified for how long I needed to be there.

"Yeah, you're right. Let's go."

I turned to go, but froze. Rose let out a yelp, and I opened my mouth to yell, but my voice had stopped working. There stood in front of us, blocking our way back, a large reptilian creature. Its scales were gleaming, and its yellow eyes made my heart crawl into my throat. I knew for a fact that we were goners. I didn't know how it had crept up on us so silently, but now its nostrils flared, as it slowly made its way towards us, closing in for the kill.

~.~.~.~.

Leo:

"You sure this is the place?" I asked. Percy Jackson was a step ahead of me, his sword drawn. Riptide's celestial bronze blade glowed in the dark, illuminating our path. He nodded. "Yep. This is where Chiron wanted us to come."

"There's nothing here! Unless Chiron wanted us to examine a bunch of rocks in a creepy forest, I don't see any solid reason for sending us here." DJ McEllow complained from beside me. She was Percy's half-sister, and looked a bit like him too: skinny, yet athletic, with pixie-cut black hair, and green eyes. She was fifteen, my age, and a year younger than Percy. She walked steadily, poised for attacking anything that came our way. Percy had forbidden me from using my fire before we saw signs of an eminent attack, so as to avoid forest fires; they were too much of a nuisance.

"It stinks here." I commented, trying to break the freaky silence. Suddenly the hairs on the back of my neck stood up, and I stopped dead in my tracks. The others must've felt it too, for they stopped as well, readying themselves.

"You guys feel that?" DJ asked, her eyes scanning the perimeter for any threat. I nodded, and let Percy lead us forward. I heard soft voices, somewhere off to my left.

"Guys, check this out." DJ called out, crouching low. She was pointing at something on the ground, and I stooped low to see it.

It was a huge footprint, and I immediately knew of what. "That's a Drakon isn't it?" I asked, my throat dry. DJ nodded. "Yep. Its either that, or Godzilla's real and decided to make a trip to London."

"C'mon, we'll follow the footprints, see where it leads us." Percy ordered, already heading off along the trail. DJ sighed. "Now, I understand that after defeating Gaia, y'all don't find anything as much of a challenge" she said, getting up to follow her brother, "but can we please not go looking for a monster? I don't like the prospect of heading towards my death."

Percy pretended not to hear her. I looked at her. "C'mon. The faster we get this over with, the sooner I can get back to my fronzies." We followed Percy into the darkness.

We hadn't gone more than ten meters, when we spotted the beast. It was as long as four school buses put together; large enough to make the Minotaur look like a rag doll. It was facing in front, with its side to us, and we saw what it was looking at.

Two teenagers, about our age, were standing petrified, staring at the Drakon. The boy held a lantern in one hand, and what seemed to be a fancy looking stick in the other. The girl also had a stick, which she held up like a weapon. Despite our situation, I had to stifle a laugh. These two apparently thought a stick would be a good defense against a Drakon.

"HEY!" Percy yelled, successfully diverting the attention of the Drakon. It turned towards us, and I looked away. I hadn't fought a Drakon before, but I knew that their eyes paralyzed you. That must've been why the two people hadn't been able to move, but now that the Drakon had picked new targets, they huddled near a far tree, putting themselves out of the line of danger.

My arms caught fire, and I ran in front of the Drakon, waving them over my head, screaming at the top of my lungs. I had fought with DJ and Percy innumerable times, and I knew our plans. I was to be the distraction, while DJ and Percy killed the monster.

The Drakon turned towards me, its head following my movements. For a moment, it looked confused as though it wasn't used to its prey being so crazy, but it snapped out of it quickly. It spat poison towards me, and I jumped out of the way just in time. The poison melted the grass on the ground on which I had been standing just a moment ago.

DJ shot three arrows into its eye, blinding it on one side. It opened its mouth in a shriek, and I took the opportunity to shoot a flaming ball of fire down its gullet. It screamed again, and retreated. DJ abandoned her bow, tossing it away. She took out a long silver rod, and flicked it. It expanded until she was holding a meter-and-a-half long half-celestial bronze half-steel blade. Lancer was the name that she called it by. She charged the Drakon's feet, and swung her sword, leaving a deep wound in its calf, which started bleeding an oily black substance. This gave Percy time to climb onto its back, using the scales as handholds.

I shot white-hot flames towards the Drakon, successfully scorching its chest. It wailed again, and DJ took the opportunity. Using the hand of the beast as a lever, she launched herself at its face. She turned her face away, and drove her sword into its other eye. She leapt off, and watched as Percy finished the work.

He rapidly climbed up to its neck, and raised his sword high. Then, with a defiant yell, he brought it down on the neck of the Drakon, severing it from the body.

He jumped off, just as the beast disintegrated, leaving behind no sign of its existence.

Percy ran over to the two teenagers, who seemed no less scared, even though the monster was gone.

"Are you guys okay?" he asked. They answered him by screaming at his face and backing up, almost as if they were scared of us.

"Hey, mate, we ain't here to hurt you." DJ said, flicking her sword again so that it turned back to the rod.

"STAY AWAY!" the boy yelled, holding out his stick. Now I was beginning to get annoyed. We had defeated the Drakon trying to save them, and these people acted as though we were the monsters.

I stepped closer to them, and the boy yelled, "Stupefy!"

I was knocked off my feet, as every muscle in my body stopped working. It felt as if I had gotten a full body anesthesia done, though I knew that wasn't the case. I now knew that the sticks these two carried were no ordinary pieces of wood. I started to recover, just as DJ yelled "WATCH OUT PERCY!"

Something leaped over me, and I could barely make out its form. I willed myself to recover faster, but it wasn't working. I could only lift my head enough to see that four hellhounds now stood facing us, mouths frothing in expectation of their newest victims.

~.~.~.~.~.

James:

The latino boy lay on the ground, and I knew my stunning spell had worked perfectly. The girl and the older boy (who seemed to be siblings) held out their weapons to us, wide-eyed. The girl was now holding a knife, and the boy, his sword. I raised my wand to throw another spell at them, when the girl yelled "WATCH OUT PERCY!"

Something leapt over the body of the boy who lay on the ground, and I turned in horror to see what it was. They seemed to be dogs, if dogs had been the size of garbage trucks. There were four of them, and they bared their fangs. Each canine was as long as my forearm, and was dripping blood from god-knows-what.

"INCENDIO!" Rose yelled, and the ground in front of the dog burst into flames. The girl held out her hand, eyes closed. The flames started to grow bigger, until they fully shielded the dogs from our view. I was now convinced that these people were a threat. They had defeated the snake-thing, but they wouldn't be here in the first place if they didn't have any bad intent.

I focused my mind on the fight; I would deal with them later. The girl closed her fist, and the flames died down, to reveal four slightly burnt yet very angry hounds.

The girl and the boy rushed forward. The boy swung his sword at the first dog, which immediately disintegrated to dust. The other swiped its claws at the girl, slicing three marks across her stomach. She stumbled, but regained her balance and slashed her knife at it, cutting a deep gash in its body. I raised my wand and yelled "Petrificus totalus!"

The third beast froze, my spell having hit it. The girl stabbed down with her sword, and that too disintegrated. The third dog leaped at us, but a white hot bolt of fire came from beside us, and burnt its face. It wasn't dead, and I could see the latino boy slowly recovering. He got up, and held out his palm, and it burst into flames. He shot two more balls of fire at the dog, and it vapourized. I could see the other boy struggling with the fourth monster, the one with the gash in its back. It leapt at him, bringing him down. His hand was flattened away, but he brought it back, and stabbed the dog from the side. It too exploded into dust all over him.

The latino boy stumbled up, and took at step towards us, his hands still flaming. My guess was confirmed. He was going to kill us. Rose screamed, and out of sheer desperation and panic, I spoke the first offensive spell that came into my mind, knowing full well what the effects were. I regretted the words as soon as they escaped my mouth.

"Sectumsempra!" I yelled, as the spell shot towards the boy. He ducked, falling to the ground in an attempt to avoid being hit, but the pixie-haired girl, who stood behind him, was unsuspecting. The spell hit her straight in the chest, and she fell to the ground, gaping wounds appearing all over her body, oozing thick red blood.

A/N: Please tell me what you think of it! I want to become a better writer, and I can't do that without your help. So please review and tell me how I can improve, how you liked the story, anything at all! I also apologize if the action wasn't up to the mark, but this is my first attempt, and I promise to try and write better.

Gracias!