Hey, Readers!: After a rather long hiatus, some interesting events and a half-decent amount of research, I'm picking up fanfiction once more. I'm not planning on releasing this until I've finished the next couple chapters, allowing for revisions and edits. Fair warning, somewhat like my previous fic, this is a crossover of sorts with a series that has no published works.

Disclaimer here: Touhou belongs to the mortal god of drunkeness himself, ZUN. I also don't own the concepts of vampires, magic runes, dynasties, secret government agencies, or Boston. Enjoy.

[September 2, 1987 – Chicago, Illinois – 2:03 AM]

The bird floated down onto his arm. The sun was shining beautifully outside, leaving the trees in vivid shades of green. Simon relaxed onto the grassy hill he was on, letting out a quiet sigh as he did so. It must have startled the bird slightly, as it hopped on to his chest, making a slight buzzing sound.

"Sorry, sorry, little guy. Didn't mean to disturb you." Simon said, gently stroking the birds feathers in an attempt to sooth it. The bird looked straight into his eyes before opening its beak.

"RING, RING." It said.

Simon MacGregor woke up in a dingy second floor apartment in downtown Chicago. His phone was ringing. Groaning, he flipped over and grabbed it off the reciever.

"What the hell is it?" he asked.

The voice on the other end answered.

"Are you serious?"

The voice said a few short words.

"Shit. I'm getting up. I'll be there by..." Simon paused, looking for his watch. He pulled it off of his nightstand, and squinted at the numbers on its face. "God damn, it's only two in the morning? I'll be there by 9, I'll catch the first plane I can."

[September 2, 1987 – Boston, Massachusetts – 9:32 AM]

Marilyn Owen stood outside Logan International Airport, muttering to herself. Her partner, one Simon MacGregor, was running late. "When I get my hands on him... said he'd be here...GRAH!"

The last came when a man, dressed in jeans and a well worn leather jacket, walked up behind her, saying, "Sorry, security these d-"

He was cut off by her whipping around and slapping him in the face. "You're late." she said, barely raising her voice above a whisper. He began to try and continue his excuse, only to be interrupted by her speaking again. "We need to talk. There's a cafe a few blocks near here."

Simon nodded, figuring his lateness was probably the trouble. Who knows what plans she had for the half hour she wasted waiting for him?

"So, you mentioned a serial murderer?" Simon asked.

They were sitting in a small cafe on one of Boston's many alleys, seeming to anyone who cared to look as a young couple in their early twenties. While they were far from a couple, the partners worked together for a top secret government agency known internally as the UAD.

Marilyn sipped her coffee. "Special kind, just how you like them." She handed him a folder with unicorns on the front. Simon took it without question, though he took the time to raise an eyebrow in her direction.

"Office ran out, this was all they had." She shrugged. "You get to the interesting part yet?"

"Missing blood, nasty bruises to the legs?"

"You know what it means, right?"

"I get to live up to my family name. Happy days." Simon deadpanned.

"That's right. Little Simon gets to live up to his name as a vampire killer."

"It would be a lot funnier if it actually was my first." He closed the folder, and looked out the window. "Small vamp, this one."

Marilyn sat up straight. "What makes you say that?"

He turned to her before answering, "The bruises. They're on the backs of the legs, near the knees. Look at the photos." He turned back to the window.

She quickly picked up the folder, and flipped through the pictures of the photos. Sure enough, every single victim had bruises along the backs of the lower legs. "I hadn't noticed that, but how does that mean our killer's small?"

He glanced at her before looking out the window again. "Think about it, they're bruises. The killer has to be close to do that."

"So? A strong hit there will knock down just about anybody. I still don't... wait a second. We know the killer is a vampire, so they want to make the attack as clean as possible to avoid making noise and drawing attention to themselves."

Simon nodded, still looking out the window. "Good, you're on the right track."

Marilyn thought about it further. "Why bother with knocking them down? If they can get close enough to knock them down with a hit to the legs, they could just go for the neck directly. There's no need, unless..."

Simon smirked. "Unless the vampire is small, meaning that they can't reach the neck from directly behind them without making a lot of noise."

"You're an asshole. What's outside, anyways? I don't see anything out there."

"Love you too. I've got something I need to do," He pulled some money out of his wallet, then stood up. "I'll see you at the next crime scene tonight."

"Wait!" Marilyn shouted, beginning to stand up herself before noticing he had left the money on the table. She sat back down and took a closer look. It was exactly seven dollars and 36 cents. Or the exact cost of both cups of coffee, tax and tip included. "God damn it, Simon." She said to herself, before slumping down on the table.

One of the waitresses walked up to her. "Boyfriend just broke up with you there?"

Marilyn looked out the windows, noticing a leather jacket through one of the windows in a nearby apartment. "Nah, he needed to run off for something. I'm just ticked he paid the bill for me."

"Excuse me?"

Simon climbed up to the third floor of the apartment building across the alley from the cafe, and looked out from the balcony down the street. From up here, a faint stroke of color seemed to run along the street, and hung in the air. Wincing, he tapped a tattoo hidden under his sideburns, next to his eye. A symbol there glowed faintly, and then spread in front of his eyes.

The faint patch of color grew more vivid, revealing something akin to the aurora borealis running the length of the road, before making a right turn straight through some buildings. He tapped the tattoo again, deactivating the rune. Leaning against the wall, he thought of what he had read in detail, knowing Marilyn was doing much the same.

The murders started three days ago, and there had been one every night. Each corpse had lost all of its blood, as well as bruises to the backs of the legs. The consistency meant that the vampire was experienced at doing this. "Great. Not only small, but old. That's just beautiful. The aurora may not have anything to do with this, but I can't risk it." He got up, and left for his hotel room. He had some sleep to catch.

[September 2, 1987 – Boston, Massachusetts – 10:09 PM]

Simon arrived in front of an apartment well into the south side of Boston. Ducking the police tape, he walked in, pulling his badge out from his jacket pocket. "The fourth kill was here?"

"Yup." Marilyn walked out from around the corner. "We almost missed her."

"Caught a glimpse of our killer?"

"She flew off and ducked into an alley. Got a good look at her bat wings."

"Great. I was right, I'm assuming?"

"About her size? Yeah, she couldn't have been older than 9 when she was turned."

"I might be able to find her still. The night is young. I'll see you in a bit." He stepped into the hallway.

"You owe me a dinner for this!"

Simon laughed as he ran out of the apartment. "Don't worry, I'll be there!"

[September 2, 1987 – Boston, Massachusetts – 11:46 PM]

The vampire was a coward. She was willing to hunt, but not to be hunted back. Simon had managed to keep a step ahead of her for the past hour and a half, and she was running out of places to hide. Hearing his steps echo around the riverside docks, she ducked into a warehouse, and hid amongst the crates stacked there.

"Just come out and make it easier on yourself!" A voice shouted. He hadn't lost track of her. Huddling on top of her crate, she willed herself to stay still as the human below searched between the crates, holding a small blade in his hand. "I can hear you, you know!" he called out. She squeaked, and pulled her knees to her chest, shaking with fright. Simon began to climb one of the ladders. Each time he climbed up a rung, the sound echoed throughout the warehouse, scaring the vampire further. She couldn't take it anymore. Screaming, she flew down, and out of the warehouse, past Simon, who was sliding down a ladder placed next the entrance. She swung up into the night sky, and spotting a familiar glow, began to fly, awkwardly towards it, only to fall down when a blade slashed her wing.

After staring at the glowing runes along the knife's blade for a moment in shock, she grabbed it, and began running towards the bright wall of light that seemed to split the city in two. Simon followed closely behind, wondering briefly just how bright the aurora would be with his mage's sight. A white glow appeared in front of the vampire, and Simon rolled in before it could close.

Elsewhere, Marilyn looked into the sky, and saw the aurora, shining across the horizon. "SIMON!" she screamed into the night. Nothing answered her.

Both he and the vampire were now in a forest, in the middle of springtime. The vampire turned, and flew at him lopsidedly. Simon, seeing he was about to lose his entrails, ducked, almost missing the blade entirely. He screamed, blood pouring from his eye sockets, and down his face. Behind him, the vampire shakily dropped the knife, before limping off. The wound felt like it was on fire. Kneeling on the ground, he managed to activate a rune on his chest before blackness overwhelmed him, ending his pain.

Unbeknownst to him, a seemingly young woman wearing a purple dress floated along the barrier, repairing the damage caused after the latest incidents.

[Springtime – Gensokyo - Unknown]