Woah, I got a lot of reviews on that last chapter. Thank you all so much! So yeah, we're already at chapter 4. That went by pretty fast. Oh and sorry to those of you that don't like yaoi, but this is now officially an EdxRoy fic. Well, time to reply to all my reviewers!

To The Teenage Writer: Yeah, Ed killed someone, but it was bound to happen sometime. I mean come on, what story doesn't have some death in it xD Don't worry, I laugh too when I read parts when someone dies.

To crazyanimefreak15: Wha! You don't like milk? I seriously live off the stuff.

To Safferon: Yep, Edo is a vampire and a cute one at that!

To Dreams of Magic: Yay! One more person who loves HavocxFury pairing! And as for what's up with Lilith and Raith, I'm not gonna tell ya! Nyah!

To psycofullmetalfan: Sorry that you don't like yaoi, but thanks for saying that you'll read it anyways. I love vampires too 'cause they kick ass. Myep!

To Elric329: I'm glad you liked the chapter. You're right; Ed must feel terrible, killing someone and all. Thanks for the review!

To HagarenFanGirl: Yes, poor Ed, but he'll survive. After all, I can't kill off one of my favorite characters now can I? Plus, that would make the story short XB

To A: I'm glad that you think so and I'll try to update as much as I can.

To AnimeDarkRain: Vampire Ed is smexy XDD

To twistedtitle: Really? You think I've written an original fic? Thank you! I live for originality!

Okay, thanks again to all my reviewers! I luff you all! Here's chapter 4!

Disclaimer: Don't own Full Metal Alchemist, 'cause if I did, would I really be writing this here?

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Crimson Sin

Chapter Four – Predator and Prey

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Ed nibbled at the end of his sandwich. He wasn't hungry, not after what had happened the night before. The metallic taste of the boy's blood still lingered in his mouth; he couldn't get rid of it! His golden hair wasn't up in its usual braid; instead it hung limply as Ed continued to nibble off crumbs of bread. Dark bags hung under his eyes and his skin had become sickly and pale. Ed looked like a mess nobody could deny that. He didn't even look up from his food when Havoc told him that Roy wanted to see him. The teen just nodded, got up, and left.

His footsteps echoed down the hall as he headed towards Roy's office for the second time in two days. Golden eyes focused solely on the ground, Edward rounded a corner and ran smack dab into Hawkeye, making him tumble to the ground. "Sorry," he mumbled as he sat on the ground.

"It's alright, but please try to watch where you're going," she said as she helped him up, letting her catch a glimpse of two puncture marks on Ed's neck. "Where'd you get that wound?" she asked Ed as he began to walk away. Ed stopped for a second and then broke into a run. Why'd he run away from me? She thought to herself as she continued on her way as well.

--

"Come in," Roy called out from behind his desk, his eyes staring at the front page of the newspaper, a frown on his face. The door to his office then opened and Edward stepped in, closing the door behind him. "Ah! Fullmetal, come here," Roy said and motioned for Edward to come closer, his eyes still focused on the newspaper.

"You wanted to see me?" Ed said as he stopped in front of Roy's desk.

The Colonel nodded and showed him the front page of the newspaper. "What do you make of this?" he asked, "Another deranged serial killer, or something else?"

Ed gasped slightly when he saw the headline. "Six bodies found drained of their blood," he read out to himself. Did I kill more than one? This can't be… I'm not a murderer… he thought to himself, but a nasty little voice told him otherwise.

Yes you are! You killed all those innocent people! You're a murderer! A monster!

No I'm not! I'm not a murderer… I'm not a murderer! I'M NOT A MURDERER!

Yes you are! Bodies drained of their blood! You killed them and drank their blood!

"I'M NOT A MURDERER!" Ed cried out, "Stop it! Just… Stop it…" He could feel tears begin to trickle down his face.

"I never said that you were," Roy said as he handed the blond boy a handkerchief. He paused a moment as the teen wiped the tears away and then said, "Is there something you'd like to tell me?"

"You wouldn't believe me even if I told you," Ed said and smiled a fake smile as he proceeded to leave the room, showing Roy two sharp fangs.

"Fullmetal," Roy said, making Ed stop, "You really do look like a woman with your hair down." Roy was rather surprised when Ed didn't shout one of his vulgar comebacks back at him and just left the room without a word.

Something is wrong with him and why did he shout out that he wasn't a murderer? Does he know something about these murders that occurred last night that he doesn't want to tell me? And when did he get fangs? Something's not right here… Roy thought as he focused his attention back on the newspaper.

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Ed sighed as he stared at the late afternoon sun. He was sitting in a large tree that had already lost its leaves, keeping his eyes closed due to his newfound sensitivity to light. His golden hair fell into his face, but it didn't matter to him. It was nice and quiet in the tree. No one could bother him here. He yawned and found himself slipping into unconsciousness again. Not even bothering to stay awake, the blond alchemist fell asleep.

--

Oh great, another one of these creepy dreams, Ed thought as he found himself staring out across a large sparkling lake. A dense green forest surrounded him and the lake, towering above everything else. The sky was filled with stars and a couple of shooting stars flew by. Only a few wispy clouds littered the night sky and Ed could hear some crickets chirping nearby.

"So you finally came," said a voice that Ed knew all too well.

"Raith…" he muttered as he turned his head to face him. A dark cloak once again obscured Raith's face and body. "What do you want," Edward hissed, baring his fangs slightly.

Raith chuckled slightly and said, "You're becoming more and more like us with every passing second. So, how was your first taste of human blood? You liked it, so don't deny it."

Edward turned away in disgust. "You're a monster," he said. Raith responded by letting out a sinister laugh.

"You really think I'm more of a monster than you? You killed six innocent people last night! I'd say you're the monster here, but it's only natural that you go after humans. They are, after all, a source of food, but I'd have thought that you had more control over yourself than that."

"Humans aren't a source of food! And I didn't kill them!" Ed blurted out, shaking with rage.

"Oh, then who killed Cody, Tom, Sam, Selene, Catherine, and Rina? Answer that Fullmetal Killer? You're no longer a human, so stop deluding yourself and accept what you are!" Raith said as he dug his nails into the sand that he was sitting on.

"Then tell me! What am I if I'm not human!" Ed cried out, wanting to beat the living snot out of Raith.

"You'll find out in due time my little half-blood. Just wait a little bit longer for your blood to completely turn and then you'll kill a lot more than six little children. You'll be alone for the rest of your life. No human would ever trust or love you! So just give up on trying to convince yourself that you're human! You're not and you'll never be again!" he said angrily as he got up.

"I am human and I'm not a monster! Don't call me a monster! I didn't kill them! I didn't drink their blood!" Ed yelled as he swung his fist at Raith, who easily dodged it.

"Too slow my little half-blood," he sneered and grabbed Ed's arm, "You did kill all of them and drink their blood! Don't deny it! You know you did! Do you have a reflection? No! The mirror is as empty as if you weren't standing there! You aren't human! The sun is your enemy! You survive on the blood of humans! You're stronger and faster than them! You could easily kill any of them! You're just a soulless monster! A killer!"

"Shut up! I'm not a killer you fucking bastard! Now shut the hell up!" Edward cried out as he swung at Raith with his other arm.

"Until next time my dear little half-blood. Don't die out on me before then for stupid reasons that you think are noble. Remember, you're the predator and the humans are the prey. Don't forget that," he whispered it Ed's ear and caught his other arm.

Everything then faded into darkness and Ed was falling once more into the same black oblivion, Raith's laughter echoing in his ears.

--

Ed woke up with a start. The sky was completely dark and everything was silent. He let out a long sigh and wiped some sweat off of his forehead. "It was only a dream," he whispered to himself and closed his eyes again.

He suddenly felt the same feeling he had felt the night before when he had passed out in the bathroom. His skin prickled and the wound on the side of his neck burned, making Ed wince. His stomach lurched again and he became dizzy.

NO! I won't kill anyone else! I won't let it happen!

Ed shut his eyes and soon the feeling passed after what seemed like an eternity. He relaxed and opened his eyes and stared up at the night sky again. It was late and he knew that he should've gone back to the dorms, but it was nice out and he didn't want to waste being able to see without getting a headache. He closed his eyes again and began to hum to himself.

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"It seems that we clearly underestimated his abilities to keep his hunger under control," Lilith said as she stared down at Edward from her perch on a nearby rooftop.

"So it seems," Raith said as he rubbed his temples. He had a terrible headache and he felt nauseated.

"I think it's time we go out for a little snack, after all, we haven't had a good meal in days," she said as she grinned evilly, her fangs glinting in the light from one of the many streetlamps.

"Yes, I that's a very good idea, but lets not get carried away," he said, grinning, as they both darted off into the night, searching for their meal.

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Okay, I know it's short, so please don't kill me. I promise to write some nice long chapters during the weekend, though they may turn out a bit dark o.o; School's been a pain in the ass, so yeah. I'm still trying to switch science classes, but I'm not sure if it's going to work. Anyways, don't forget to review!