Cast

Crystal Reed as Allison Lightwood

Daniel Sharman as Isaac Blackthorn

Melissa Benoist as Hannah Branwell

Tyler Posey as Scott McCall

Dylan O'Brien as Stiles Stilinski

Holland Roden as Lydia Martin

Author's note

There are some things you need to know before you read this one-shot.

This one-shot is based on the Netflix series Shadowhunters. The characters in this one-shot are members of races that appear in that series. Allison, Isaac, and Hannah are Shadowhunters. Scott and Lydia are werewolves. Stiles is a vampire.

Allison and Isacc's surnames, Argent and Lahey, do not belong to any Shadowhunter families, so I had to change them.

Victoria is not evil.

Gerard is not evil.

Kate is not evil.

Isaac's parents and brother are alive.

Isaac's father is not abusive.

Scott never got a tattoo.

Allison, Isaac, and Hannah left the New York Institute and made their way to Pandemonium. Eidolon demons had been spotted there.

Allison walked into Pandemonium.

Allison was tall and slender with fair skin and brown eyes. Her long brown hair was parted in the middle and styled in barrel curls. She was wearing an unzipped black leather jacket, a black t-shirt, black denim jeans, and black knee-length leather boots. A black leather archery glove was on her left hand. The glove did not cover the hand entirely. It only covered her index finger, her middle finger, and her ring finger. A black leather quiver with a single strap was on her back. The strap was on her right shoulder. Inside of the quiver were a black longbow and several arrows with red feather-looking pieces attached to the sides. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

The deflect rune was on the left side of Allison's neck. The angelic power rune was on the humerus of her right arm. The fortitude rune was on the left side of her upper chest. The talent rune was on the right side of her upper chest. The equilibrium rune was on the right side of her waist. The stealth rune was on her left shoulder. The soundless rune was on her left bicep. The acceleration rune was on her outer left forearm. The shapeshifting rune was on her inner left forearm. The strength rune was on her right shoulder. The healing rune was on her right bicep. The protection rune was on her inner right forearm. The agility rune was on her inner right wrist. The courage in combat rune was on the right side of her upper back. The heightened speed rune was on the left side of her upper back.

Allison, Isaac, and Hannah were 24 years old.

Allison's parents, Chris and Victoria, were the heads of the New York Institute. Her grandfather, Gerard, and her aunt, Kate, lived in Idris with Isaac's parents, Isaac's 28 year old brother, Camden, and Hannah's parents.

Isaac walked into Pandemonium.

Isaac was tall with fair skin, blue eyes, and short, curly brown hair. He was clean-shaven. His body was slender but muscular. He was wearing black fingerless leather gloves, an unzipped black leather jacket, a black t-shirt, black denim jeans, and black ankle-length leather boots. In his right hand, he was holding a seraph blade.

The deflect rune was on the left side of Isaac's neck. The angelic power rune was on the humerus of his right arm. The fortitude rune was on his right tricep. The talent rune was on the right side of his lower back. The equilibrium rune was on his right deltoid muscle. The stealth rune was on the right side of his collarbone. The soundless rune was on the radius of his right forearm. The acceleration rune was on his outer left forearm. The shapeshifting rune was on his right shoulder blade. The strength rune was on his right bicep. The healing rune was on the left side of his waist. The protection rune was on his left tricep. The agility rune was on the right side of his stomach. The courage in combat rune was on the left side of his upper back. The heightened speed rune was on the right side of his upper back.

Hannah walked into Pandemonium.

Hannah was tall and slender with fair skin and blue eyes. Her long straight blonde hair was parted in the middle. She was wearing black fingerless leather gloves, an unzipped black leather jacket, a black t-shirt, black denim jeans, and black ankle-length leather boots. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss. A holster made of black leather was strapped to her right thigh. A khanjali was inside of the holster.

The deflect rune was on the left side of Hannah's neck. The angelic power rune was on the humerus of her right arm. The fortitude rune was on the left side of her upper chest. The talent rune was on the right side of her upper chest. The equilibrium rune was on the right side of her waist. The stealth rune was on her left shoulder. The soundless rune was on her left bicep. The acceleration rune was on her outer left forearm. The shapeshifting rune was on her inner left forearm. The strength rune was on her right shoulder. The healing rune was on her right bicep. The protection rune was on her inner right forearm. The agility rune was on her inner right wrist. The courage in combat rune was on the right side of her upper back. The heightened speed rune was on the left side of her upper back.

One week later

It was nighttime. Scott was walking home from work and heard strange noises coming from the alley nearby.

Scott worked at New Plaza Cinema, a movie theatre located in Manhattan.

"Hello? Is anyone there?" Scott called out.

Scott was a tall Latino man. He had brown eyes and short, straight black hair. He was clean-shaven. His body was slender but muscular. He was wearing a light grey long-sleeved shirt, dark blue denim jeans, and black high-top Vans sneakers with black laces. In his right hand, he was holding a gym bag that had his uniform in it.

Scott was 24 years old.

Scott walked further into the alley to see if anyone one was hurt. A werewolf jumped onto him, sinking its claws into his shoulder and causing him to black out.

The next morning, Scott woke up covered in his own blood. He headed to his apartment, covering his shoulder so he wouldn't draw attention to himself.

Scott changed his clothes.

Scott grabbed his cell phone and called Stiles. There was panic in his voice. "Stiles, you need to come to my place. Something happened, and I don't know what to do."

Scott was wearing a black long-sleeved shirt, dark blue denim jeans, and black high-top Adidas sneakers with white laces.

Twenty minutes later, Stiles knocked on Scott's door.

Scott opened the door and saw Stiles and Hannah standing on his doorstep. He frantically pulled them into the apartment.

"What's going on?" Stiles asked.

Stiles was tall with fair skin and brown eyes. His short, straight brown hair was styled in an Ivy League cut. His locks were a little longer on top, allowing him to spike up his bangs. He was clean-shaven. His body was slender but muscular. He was wearing an unzipped green hooded sweatshirt over a white t-shirt, dark blue denim jeans, and green high-top Vans sneakers with white laces.

Stiles was 24 years old.

Scott paced back and forth. "I-I was walking home from work and heard a noise coming from the alley. I went to check it out, something jumped onto me, and I blacked out. I woke up covered in my own blood, and I saw this."

Scott pulled the collar of his shirt down. Stiles and Hannah saw a claw mark on his right shoulder.

"Scott-" Hannah started.

"D-Do you think an animal escaped from the zoo? Or a wild animal came into the city or..." Scott trailed off.

"Scott!" Stiles yelled, snapping Scott out of his frenzy.

"I think you should sit down." Hannah said, leading Scott to the couch.

Hannah was wearing a red long-sleeved button down shirt with the ends tied into a knot, dark blue denim jeans, and red ankle-length leather boots. Her long straight blonde hair was parted in the middle. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

Stiles and Hannah told Scott about Hannah being a Shadowhunter, what Shadowhunters were, that Stiles was a vampire, and that it was a werewolf that attacked him.

"How long have you guys been like this?" Scott asked.

"A year." Stiles said.

"And neither of you ever bothered to tell me?" Scott asked.

"It wasn't safe for you to know." Hannah said.

Stiles looked at Hannah and said, "We should take him to Lydia. She can help him with his first transformation."

"Wait...Stiles, your girlfriend's a werewolf? Let me guess, Hannah…I haven't been able to meet Isaac because he's a Shadowhunter too," Scott muttered.

"Yeah." Hannah said.

After Scott calmed down, Stiles and Hannah took him to Lydia, who introduced him to her alpha, Derek Hale, and the rest of her pack.

Lydia helped Scott through his first transformation and taught him how to control his new inhibitions.

One month later

Scott and Stiles were hanging out at Hunter's Moon, the bar Lydia worked at. Hannah walked in with Allison and Isaac.

Hannah was wearing an unbuttoned black cotton jacket, a green t-shirt, dark blue denim jeans, and black knee-length leather boots. Her long blonde hair was parted in the middle and styled in barrel curls. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

Allison was wearing an unzipped red cotton jacket, a white t-shirt, dark blue denim jeans, and red ankle-length leather boots. Her long brown hair was parted in the middle and styled in barrel curls. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

Isaac was wearing an unzipped dark grey cotton jacket, a black t-shirt, dark blue denim jeans, and black ankle-length leather boots.

"So, you're the new werewolf." Allison said.

"Not so loud," Scott muttered, looking around to see if anyone heard her.

Scott was wearing a black long-sleeved button down shirt, dark blue denim jeans, and black ankle-length leather boots. The first two buttons of his shirt were undone.

"Don't worry, Scott. This is a Downworlder bar." Stiles said.

Stiles was wearing an unbuttoned long-sleeved green and black plaid flannel shirt over a black t-shirt, dark blue denim jeans, and black ankle-length leather boots.

"Are you serious? All those times I came here with you..." Scott trailed off.

"You were surrounded by vampires and werewolves? That'd be correct," Allison said.

Allison gestured to herself. "Anyway, I'm Allison Lightwood."

Allison gestured to Isaac. "This is Isaac Blackthorn."

"Hey." Isaac greeted.

"Nice to meet you guys," Scott said.

Scott stayed at the bar for hours, getting to know Stiles and Hannah's Shadowhunter friends. He was intrigued by Allison. She seemed to be intrigued by him. Within a few weeks, they became quite close.

A few days later

Stiles and Scott were hanging out at Hunter's Moon.

"So, when are you going to ask Allison out?" Stiles asked.

Stiles was wearing a black long-sleeved shirt, dark blue denim jeans, and black high-top Converse sneakers with white laces.

"What are you talking about?" Scott asked.

Scott was wearing a light grey long-sleeved shirt, dark blue denim jeans, and light grey high-top Nike sneakers with white laces.

Stiles laughed. "Oh, come on, Scott. It's obvious you and Allison like each other."

Scott took a sip of his beer. "She's out of my league."

Stiles grinned. "According to Hannah, Allison would disagree."

"Okay, now you're just messing with me." Scott said.

"I'm serious. Hannah says that Allison talks about you all the time and thinks you're cute." Stiles said.

"You really think I should ask her out?" Scott asked.

"I do, and look who just walked in." Stiles smiled and waved as Allison walked into the bar. "Now's your chance."

Allison approached Stiles and Scott.

"Hey, Allison." Stiles greeted.

Allison smiled at Stiles and Scott. "Hey, Stiles. Hey, Scott."

Allison was wearing an unbuttoned black long-sleeved button down shirt with the ends tied into a knot, dark blue denim jeans, and black ankle-length leather boots. Her long brown hair was straight and parted in the middle. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

"Lydia's about to get off work. I'm going to go wait over there." Stiles said, getting up from his seat. "Have fun, you crazy kids."

Allison sat next to Scott.

Allison chuckled and asked, "What's up with Stiles?"

"He's convinced we like each other and I should ask you out." Scott said.

"If you asked me out, I would say yes." Allison said.

"Well, then, would you like to go on a date right now?" Scott asked shyly.

Allison smiled. "I would like that very much."

From the other side of the bar, Stiles watched Scott and Allison.

Lydia came out of the back room.

"What are you so happy about?" Lydia asked Stiles.

Lydia was tall and slender with fair skin and green eyes. Her long straight strawberry blonde hair was parted in the middle. She was wearing a black long-sleeved shirt with a lace overlay, dark blue denim jeans, and black knee-length leather boots. She had on a light amount of black eyeliner, a light amount of black mascara, soft brown eyeshadow, and nude lip gloss.

Lydia was 24 years old.

"Scott and Allison are finally on a date, and it's all thanks to me," Stiles said proudly.

Lydia laughed. "Okay, Doctor Love, let's get out of here. You can get all the details from Scott tomorrow."

At the end of the night, Scott walked Allison back to the Institute.

"I had a lot of fun tonight." Scott said.

"I did too." Allison said.

"Would you like to go out again sometime?" Scott asked.

"I would like that very much." Allison said.

"I guess this is good night." Scott said.

"I think you're supposed to kiss me first." Allison said.

Scott leaned down and kissed Allison.

Allison walked up to the doors. She looked over her shoulder as she opened one of the doors and smiled at Scott. "Good night, Scott."

THE END