Chapter Text
Let the Right One In
Prologue
Not once in the twenty short years of his life had Spencer Reid felt as lost and scared as he did in this very moment. He felt his heart beating all the way up in his throat, the pulse thrumming in his ears as he clutched the cell phone in his hand so tightly the knuckles turned white.
"What´s happening, Derek?" he asked breathlessly, his strained voice barely more than a whisper that echoed from the walls in the hallway of his apartment.
He didn't understand how his whole life had been turned upside down in just a matter of days, making everything he had thought true and reliable seem like nothing but feeble phantoms now.
Why was this happening to him? What had he ever done to deserve getting his life ripped out of his hands without so much as a moment's notice?
He really wanted to ask Derek but knew that it would be pointless and that there wasn't any time to.
"Spencer, listen to me," he could hear the stress in Derek's voice, could hear him moving with inhuman speed as he ran through the streets towards the apartment, "I´ll be right there. Whatever you do, don't leave the apartment now. And if he shows up, don't let him in, you hear me?"
Spencer let a shaky breath escape his lungs, unable to form an answer as he clutched the handle to his open apartment door with trembling fingers. His eyes flickered over the shadowy figure standing in the door frame, smiling down at him darkly, sharp teeth gleaming in the dim light.
He really wished Derek had called him a little sooner.
xxxx
Chapter 1: Changes
Finally, after what seemed like hours of sitting in his stuffy old car in front of the university did he emerge.
He wasn't alone yet again, he never seemed to go anywhere without at least one or two people following him around. The two humans he was with now were the most frequent ones with him though, a young woman with blonde hair and a bright clashing outfit and a skinny boy who looked younger than the other two, dressed like a very awkward librarian.
He scoffed.
Hard to tell what he saw in them when he was so clearly superior to them. Because really, what were they in the greater scheme of things? Nothing but annoying flies to be swatted away before the endgame. Once it was time that would be a walk in the park and a pleasure. For now he had to focus solely on him.
Derek, they called him.
He was walking down the stairs with them, all of them chatting and laughing as they headed towards the parking lot. Just then, the woman swatted his arm playfully and he grinned; it looked like he was very fond of her for some unfathomable reason.
That was nothing compared to the skinny kid though. Whenever he had seen Derek lay eyes on the brunette boy these past weeks he´d seen them light up from inside, giving his face a glowing undertone.
Even now he was walking closer to him than he had found was usual for human males, grabbing the satchel his friend was carrying and throwing it over his own muscular shoulder. The kid said something, maybe in protest, but Derek merely grinned, draping a heavy arm around his thin shoulders and ruffling his hair playfully before he pulled him along.
Looking on, the girl grinned and said something he couldn't hear from the distance. He could guess at the content though when he saw the kid blush. He didn't pull away from the taller man´s embrace though, clearly comfortable enough.
The sight irked him, made him angry even but he told himself that it didn't matter anyway. It wasn't like he´d have to watch them overshadow Derek's light for much longer.
He kept watching until they had reached their car and gotten in, driving of. Only then did he start his own motor, slowly starting into the slow afternoon traffic.
Soon.
Soon it would finally be time. He had been watching him for weeks now, an invisible partaker to his life. Now it was time he would finally be made part of their life.
xxx
Four days later:
It was just after sunset on a clear winter day when 22 year old college student Derek Morgan was walking home from his kickboxing training. The wind stung on his sweat covered skin and he pulled his leather jacket closer around him as he hurried down the streets.
The walk home wasn't a particularly long one but he was running late so he decided to call and let his roommate know not to worry. He pulled his cell phone out of his pocket, dialed, waited and smiled when he heard a familiar voice answer, the other person audibly suppressing a yawn.
"Derek, where are you?" Spencer sounded like he´d just woken up, likely tired from spending another twelve hour day at the university's library, devouring books of which Derek couldn't even spell the title.
Derek couldn't help but smile that the mental image of the skinny genius curled up on their couch, trying to order his unruly hair as he answered the phone. "Hey, pretty boy. I'm just on my way back, I got held up at the gym."
He looked up to find he was just passing the central park, black trees rustling and swaying in the wind above his head.
"Oh…alright," Spencer said, "I made some Spaghetti earlier. They are on the stove in case I´m already asleep again when you get here."
"Spaghetti again, huh?" Derek grinned, "Seriously, had I known you can only cook one dish I would have roomed with Penelope."
"We can still make that happen, Derek. And may I remind you that that is still one more recipe than you have to offer, mister."
Spencer´s tone was light and joking but Derek still couldn't help but wince slightly.
Over the past few months their friendship had gone through some rough patches and it wasn't too long ago that he had had to fight to to keep Spencer from moving out of their shared apartment. He wasn't too keen on repeating that experience, especially not over noodles.
"I'm just teasing, Spencer," he grimaced, hoping it wasn't audible in his voice, "you know that, right?"
"Yes, I know," there was a short silence, then Spencer chuckled, "After all, Penny can't cook either."
Derek shook his head with a snort, about to reassure the younger man once more that that wasn't the only reason he would never move out willingly when there was a sudden noise behind him, startling him.
He spun around, immediately alert as he looked around for any possible threats.
The area he was in wasn't a particularly unsafe one, but his pulse had quickened anyway. There was nothing there though, just the silence of the street and the nightly wind rustling through the trees. He listened intently for a long moment but nothing moved.
"Derek?"
He could hear worry in Spencer's voice and snapped back to reality quickly.
"Yeah, I'm still there," he said distractedly, still looking around, "Just thought I heard something. Listen, I´ll be right there, ok? Don't fall asleep yet."
He wanted to at least see Spencer for a couple of minutes today –he didn't really object to watching him sleep either but he had been informed that that was just a little bit creepy by several sources.
Spencer yawned again, "Hmm. Hurry though. I've been up since five."
"I will," Derek grinned, "Wouldn't want to be responsible for putting rings under those pretty eyes of yours."
"Right." He couldn't practically hear Spencer roll his eyes at his words, wishing he could see the faint blush that had surely crept into his cheeks anyway. "Less talking, more walking, Derek."
He laughed, loving the way Spencer would always sound flustered when he intended to sound annoyed with him.
He hung up, hurrying his steps. He could be home in ten minutes if he didn't drag his feet. They were both extremely busy during the week but Derek always tried to arrange his schedule so they could at least have one meal together.
No matter what anyone thought about it, or how often the guys from his sport clubs teased him about hanging out with a nerd, seeing Spencer was always the highlight of his day.
He let his thoughts wander a bit as he walked, to how unlikely a connection between him and Spencer Reid had seemed back when they had met on their first day of college.
He had been the typical stud, handsome, tall, and athletic, with a basketball scholarship and more groupies than he could count from day one. Spencer had been the brilliant and yet awkward kid who had entered college at sixteen and who had been pushed into tutoring Derek by one of their professors. No one in their right mind would have bet anything on them becoming friends, unless it would be little Spencer tailing after the great Derek Morgan in silent, envious admiration.
As it had turned out, it was just the other way around.
Derek had been fascinated with his tutor from the first minute, not giving up until he had a place in his life despite Spencer´s initial distrust in the jock.
It wasn't the easiest of connections and they'd had their share of troubles –including The Incident—something Spencer had forgiven him for and which they had put behind them. Now, four years after their first meeting, they were best friends sharing an apartment and one of the deepest relationships Derek had ever been a part of.
He had a lot of friends, but, no matter what they or his mother said about it, he couldn't think of anyone better to come home to than Spencer.
His thoughts were interrupted suddenly when there was a loud crack in the trees to his left, startling him once more.
Before he could even turn in the direction of the sound though, there was a sharp pain between his shoulder blades seemingly out of nowhere, a hard shove sending his sprawling to the ground. His cell phone slithered across the rough concrete, the same concrete that cut into his palms and knees as he caught himself at the last second.
Derek's head whipped around and he flexed his muscles, ready to fight whoever had attacked him, but he wasn't fast enough to even see more than a flash as a dark shadow suddenly pounced on him, shoving him back onto the ground painfully. Hard hands gripped his shoulders before he could fight them off and he found himself staring up at his attacker: The shadows covered his face, giving it the same color as his dark coat and the eyes gleaming in the light of the street lamps in a way that seemed almost unearthly.
"What the-?" Fight instinct kicking in, he bucked to throw the man off of him, but found him to be surprisingly heavy. A punch he threw was easily deflected and suddenly there were long, hard fingers curled around his throat, squeezing mercilessly. Derek felt his heart racing as he fought for air, legs kicking uselessly in the air.
The man above him barely seemed to notice his violent struggling, staring down at him out of those eerie eyes with frightening calm.
Tightening his grip around Derek's throat, he leaned down until their faces were only a couple of inches apart, rasping words he couldn't understand.
"In aeternum meus es tu."
And before Derek could even begin to understand, he ripped his head back, light finally illuminating his face and showing the visage of a monster, yellow eyes and razor sharp fangs as he grinned down at him.
Then there was only excruciating, blinding pain as he lunged for Derek's neck, burying those same teeth in the juncture between his shoulder and throat.
xx