Chapter Three: Fireflies

Derek had Scott going in one direction while he went another hoping to find the two werewolves faster. Scott ran through the Preserve looking for them hoping to find them before they found someone else. Soon Scott saw Boyd lifting a small metal shed that was protecting two young children. Scott's eye widen as he heard Boyd growl, ready to tear the children into pieces. Scott looked down when he kicked something to see a jar of fireflies. The fireflies seem to blind Scott while using his wolf vision giving the teen an idea. Scott grabbed the jar and unscrewed the lid rolling it between Boyd's legs. Boyd hearing the jar rolling looked down as the fireflies flew out of the jar and swarmed his head. Boyd swatted at the fireflies trying to get them away as Scott grabbed the kids and took them to safety.

Scott stopped at the edge of the clearing with the two children and pulled out his phone and dialed Derek's number. After a few ring Derek's annoyed voice came out of the phone's speaker.

"I lost Boyd." Scott spoke. "Look, we should work together on this. Boyd is too strong, too fast, and way too angry for one person to handle alone."

Scott listened to Derek taking in a deep breath and then told Scott where to meet up.

"Alright, I'll be there in a little bit. I have something that I need to drop off first." Scott said giving the two kids a kind smile.

After Scott and Derek Meet Up

Scott and Derek run through the Beacon Hills Preserve following the tracks that Boyd and Cora left. Derek jumped through a gap in a tree as Scott jumped on a branch and flipped off landing beside him.

"When I last saw Boyd he was ready to rip those kids to shreds. Are they going to be like that with anyone they come across?" Scott asked running his hand through his hair.

"Anyone and everyone." Derek replied.

Lydia's House

Lydia woke up from her daze screaming and thrashing around in her bed. She soon calmed down and grabbed the aspirin bottle on her nightstand only to find it empty. She tossed the bottle back on the nightstand and stood up putting on her coat.

"Mom, I'm going to the store I'll be back in a while." Lydia yelled. "Mom? Did you hear me?" Lydia yelled out again before sighing. "Of course you didn't or else you would have heard me screaming like a lunatic." Lydia rolled her eyes then stared up at the full moon before heading out.

Beacon Hills Preserve

Scott and Derek joined up with Isaac while still hunting for the rest of the pack. Scott looked at the tracks to see that the two moon-driven werewolves joined up as well.

"It looks like they joined up as well." Scott pointed out. "Will that make them easier or harder to catch?"

"Maybe we should rethink the whole not killing them thing." Isaac suggested getting glared at by Scott.

"That isn't how this is going to go." Scott firmly stated. "That is probably what Deucalion wants us to do anyways. Besides one of them is Derek's sister."

"What are we going to do when we catch them? Hold them down until sunrise?" Isaac argued.

"Maybe it would be easier for us just to kill them." Derek sighed.

"No. We just need help." Scott announced thinking of a plan.

"We have Isaac now." Derek nodded towards the blond werewolf.

"I meant real help." Scott rolled his eyes as Isaac looked slightly offended. "We need someone that knows what they're doing. Someone that spent their life hunting werewolves."

An Hour Later Beacon Hills Preserve

A teen girl named Caitlin was lighting candles inside the tent she set up as she heard her girlfriend named Emily complain and freak out about a huge snake. Caitlin smiled and shook her head at Emily's antics while making sure everything was perfect for their night together. Emily rushed into the tent nearly knocking over candles as she quickly zipped up the opening of the tent. The two girls laughed for a bit before they began to kiss. Emily was quickly brought out of her lustful daze when she notice a bug on the tent and many more joining the first. When Emily noticed the bug on her shoulder she freaked out and rushed off into the woods.

Caitlin tried to follow Emily, but lost her very quickly and decided to see if Emily was back at the campsite. Emily, however was still running through the woods as more bugs landed on her. Not paying attention to where she was going she tripped on a root and hit the ground hard. Emily rolled over to see a swarm of bugs heading towards her and screamed unknowingly catching the attention of a werewolf. The bugs swarmed Emily until the girl was no longer visible and when they dispersed Emily was gone.

Caitlin returned to the campsite calling Emily's name and was beginning to get frightened. Suddenly Caitlin spotted two glowing yellow orbs in the distance that began to creep closer when she discovered the orbs were eyes on a girl with claws and fangs. Caitlin let out small scream when Isaac attacked Cora. Cora growled in retaliation and tossed Isaac into a tree. Scott heard the commotion and ran to the site to see Cora advancing on a stunned Isaac. Scott put in an extra burst of speed and dropped kicked Cora away. Cora hit the ground as Scott flipped back to his feet. Cora picked herself up and rushed Scott. Scott pulled his fist back ready to attack back when both of them froze staring at each other. Both were trying to move, but it was their wolves freezing them in place not allowing them to hurt each other.

Derek arrived just in time to see the frozen standoff and let out his Alpha roar causing Cora to break out of her trance and run off with Isaac and Derek hot on her heels. Scott shook his head and turned to Caitlin telling her to get out of the woods as fast as possible. Scott left leaving Caitlin alone as she pulled out her phone and called 911 and waited for the police to get there.

Beacon Hills Pool

Lydia parked her car and got out still texting someone on her phone. After a few feet of walking something felt wrong to the red head and made her look up from her phone. Lydia gasped in shock as she was at the Beacon Hills Pool and not the store where she was heading to begin with. Lydia continued to walk into the pool area as if something was drawing her in. Lydia face drained of color as she saw a body in the pool face down. Lydia slowly made her way to the edge of the pool praying the person in the pool wasn't dead. She hesitantly reached her hand out and grabbed the shoulder of the person and flipped them over. The body flipped over to reveal the face of a mannequin which made Lydia release the breath she was holding. Putting her hands on the ground beside her she felt her left hand land in something wet. Slowly lifting her hand to see it was covered in blood her breathing shallow greatly as her eyes drifted to the puddle of blood and began to follow the trail back to the lifeguard station.

Lydia let out an awful scream as she saw a young man around her age covered in blood with his throat slashed. Lydia reached into her purse and pulled out her phone with trembling hands as she dialed three numbers and waited. After that phone call she found herself dialing Stiles' phone number without really realizing it.

Within five minutes Stiles' Jeep whipped into the parking lot. Stiles barely came to a stop before he jumped out and headed to Lydia. It took a while to calm her down and then even longer to calm her down after their argument about calling him before 911. The two teens waited for the police to come to the pool as Stiles looked at the body and noticed the purity ring on the man's finger. Stile grabbed his phone and scrolled through his contacts until he got to Scott's name and sighed hitting the call button.

Beacon Hills Preserve

"Are you sure that it was them?" Scott talked into his phone to Stiles.

"Scott, the guy's throat was slashed. Who else could it be?" Stiles groaned.

"We're on the opposite side of the Preserve there is no way for them to get there and back that fast." Derek spoke hearing the conversation.

"If it was them though, we have to stop them fast." Scott looked Derek in the eyes. "We need Chris Argent's help."

Scott ended his call with Stiles as Derek continued to glare at Scott.

"This isn't going to work. You don't want to kill them yet you'll willingly go to someone that won't hesitate to kill them." Derek snarled.

"We can't track them on our own and you know that Mr. Argent changed." Scott defended the man. "Just let me talk to him and nobody else has to die tonight."

Derek stared at the Omega in front of him with hard eyes. Derek sighed knowing that the death that happen at the pool was weighing on Scott's mind. The teen was blaming himself because of Allison's actions on his behalf may had led to the man's death. Scott always wanted to protect everyone, especially those he cared about and eventually that may lead to the Omega's downfall. Derek slowly nodded his head in defeat and led the two teens to his car to take them to Argent.

Beacon Hills Supermarket

Chris Argent was unloading his arms of the bags of groceries into his SUV when a bag slipped from his grasp and landed on the asphalt of the parking lot. Chris let out a weary sigh as he noticed it was the bag with the eggs. Not feeling like going back into the store for another dozen, Chris tossed the bag into the back of his SUV and shut the door. Chris automatically pulled out his pistol and pointed at the visitor only to see Scott McCall at the other end of the barrel.

"I know I'm probably the last person you want to see right now, but I need your help tracking two werewolves named Boyd and Cora." Scott said looking at the gun and Chris respectfully. Scott proceeded to tell Chris about that night.

"Why would I want to help anyone related to Derek and I don't even know this Boyd's last name." Chris pointed out still holding the gun.

"Boyd is his last name." Scott stated.

"Well what his first?" Chris asked before he even thought about it.

"Vernon." Scott smiled. "Is there a reason you still have your gun pointed at my head?"

"There's probably still a part of me that wants to shoot you." Chris honestly replied.

"I get that." Scott nodded in understanding. "We really could use your help though. The two may have already killed one person and Boyd was about to rip two little kids apart tonight."

"I'm out of the hunting business. Your world decimated mine. I watch my wife die. I had to watch as my father used that grief to try and turn my daughter into a killer. I watched my family destroy itself." Chris said.

Derek's Car

Derek and Isaac were sitting in his car waiting for Scott to finish talking to Chris Argent. Isaac glanced at Derek a few times as the silence was beginning to annoy him.

"You think this is going to work?" Isaac finally broke the silence.

"No." Derek replied shortly.

"So your little sister…"Isaac began, but a glare from Derek made him think otherwise. "Right, not a good time. Got it, I'll ask later. It's fine." Another deadlier glare made the blonde teen rethink his statement once more. "Or never… never works for me."

The two werewolves went back to silence as they watch Scott talk to Argent and then get into the hunter's SUV. Derek followed the SUV towards the pool to see the ambulance and the EMTs carrying a body out on a stretcher. The older werewolf could hear Argent and Scott discussing the possibility that Boyd and Cora caused this. Derek let a small smile grace his face as he heard Argent concede to helping the werewolves.

"It worked." Derek stated to the blonde beside him.

"Back in the woods, why did Scott and Cora freeze when they went to attack each other?" Isaac asked about the thought that keep running through his head.

"I don't know and something tells me I will want to kill Scott when I find out." Derek answered following the SUV.

Beacon Hills Preserve

Chris Argent stood in front of the three male werewolves and looked at them closely. Chris could tell that while Derek and Scott were handling the moon's effect fairly well, Isaac was struggling.

"You three are failing because you are trying to track Boyd and Cora by their prints. There is only one creature that is able to track by prints and that is man. As an experienced hunter I can tell that these prints here are Boyd's and those over there are…" Chris explanation was interrupted.

"Those are Cora's." Isaac smiled finishing Argent's sentence.

"Wrong. Those prints are your own. You trampled Cora's as soon as you got here." Chris snapped glaring at the blonde werewolf. "You three won't be able to track them this way. You're using half of you energy fighting your own urges that the moon gives you. The three of you are wolves and wolves can track their prey by scent up to two miles, so focus on your sense of smell. Derek you think you got a lock on your sister's scent?"

"I haven't seen her in six years." Derek spoke with a pained look in his eyes.

"How about you Scott?" Chris turned to the other werewolf.

"I didn't sniff Cora during the fight." Scott answered quickly and saw Chris and Derek give him a look.

"I meant your sense of smell." Chris shook his head.

"Oh! Usually I try not to think about all the things I can smell." Scott replied and by the look on Chris' face that wasn't a good answer either.

"This is going to be a long night." Chris mumbled as he headed back to the SUV for supplies.

The three werewolves follow Chris to the SUV with Derek glaring at Scott the whole way. Soon Chris pulled out a duffel bag and began to dig through it explaining how a hunter uses certain traits of werewolves to track them and trap them. He then explained that the two rabid werewolves needs to be stopped before getting past Beacon Hills High School or else they will be in the heart of Beacon Hills. Chris reached into the bag once more and pulled out a silver color light and held it up.

"These are ultrasonic emitters." Chris said pressing the top to cause the light to flash. "These create a frequency that only werewolves can hear and drive them insane. We use these to lure werewolves or to drive them where we want them."

Chris looked at the three werewolves that are clearly in pain and holding their ears. Chris smiled before shutting the emitter off and asked where they were planning on trapping the werewolves as they need something metal with no windows. Isaac quickly suggested the boiler room at the high school and the others agreed since the school should be empty that late at night.

Lydia's Room

"You know you didn't have to take me home." Lydia stated as she and Stiles walked into her room.

"And let you drive in your condition." Stiles scoffed.

"Well you didn't have to follow me into the house." Lydia shot back.

"I just wanted to make sure you were safe." Stiles sighed.

"You also didn't have to follow me to my room." Lydia crossed her arms and raised an eyebrow at Stiles.

"Yeah, I don't have anything for that." Stiles rubbed the back of his neck.

All of a sudden Stiles' phone began to ring. Stiles reached into his pocket and pulled out his phone juggling it for a moment before getting a grip on it and answering the call. Stiles listen to the voice of his best friend's mother asking him to go to the hospital and look at something. Stiles made sure Lydia would be fine by herself before taking off to talk to Melissa McCall.

Beacon Hills Preserve

Derek placed the last of the ultrasonic emitters that he hand and began heading towards the high school when an unwelcome scent crossed his path. Derek rolled his eyes as he turned to face his uncle that just couldn't stay dead.

"What do you want Peter?" Derek voice came out closer to a growl.

"Now, now that is no way to talk to family." Peter spoke as if he was speaking to a child. "You know you are playing right into Deucalion's hands right? I mean he want you to kill those two or die at their hands in the vault, it makes no difference to him if a few unsuspecting people get caught in the crossfire as long as the plan works."

"What are you saying?" Derek sighed leaning against a tree.

"I'm saying who cares that they are running wild. What is the worst thing they could do? Kill a few homeless people or maybe a couple of drunks stumbling out of a bar far later than they should." Peter reasoned. "Also even if you do kill them you're an Alpha, you could always make more. We live in shades of grey Derek. Let Scott be the hero that lives in the world of black and white."

With that said Peter walked off leaving Derek to his thoughts. Derek sighed as both of Peter's options weren't all that appealing especially when Scott would greatly disapprove of those plans. Derek rolled his eyes at his own thoughts wondering when he started caring about what Scott would think. Derek shoved off of the tree and started heading to the high school were the original plan would hopefully work. Derek was hoping the plan would work since he really didn't want to kill Boyd and especially didn't want to kill his sister as she was part of what little family he had left.

Beacon Hills Memorial

Melissa McCall waved Stiles over to her as soon as she seen the high-strung teenager walk through the door. Melissa led Stiles through the hospital and to the morgue. Melissa pulled the sheet down on the man that Lydia found and the pool and turn to Stiles.

"I know I'm fairly new to this whole supernatural world, but I'm almost positive that this man was not killed by a werewolf." Melissa stated. "Look at the wounds and tell me what you see."

Stiles walked closer to the body fighting urge to faint at the sight. Stiles looked closely at the wounds and found that Melissa was right the wounds did not match what a werewolf would do.

"His throat was slashed, he was strangled, and his head was bashed in. Any one of these injuries could result in this boy's death. Someone really wanted him dead." Melissa began. "Also that isn't everything. Spending time with your father taught me to connect clues that may have not be connected otherwise."

Stiles looked at Melissa curiously at the mention of his father and his best friend's mother spending time together, but was unable to comment on it as Melissa led him to another body.

"This body was found two days ago and the odd thing is that the wounds are the same as the boy that was brought in tonight." Melissa said pulling the sheet down.

Stiles felt his breath disappear and his hazel eyes began to sting. Looking down at the body of a blonde girl that just recently turned seventeen. Melissa looked up to Stiles to gauge his thoughts when she took notice of his face and cringed internally quickly covering the body again.

"Oh god. You knew this girl didn't you." Melissa looked Stiles in the eyes sympathizing with the teen.

"Her name is Heather. Scott and I were at her birthday party a few nights ago when she disappeared." Stiles ran a hand through his hair as the gears in his head clicked in place. "Did you received any other bodies tonight with the same wounds?"

"No, the only other person that came in tonight was living." Melissa answered. "She being treated for ecstasy. She and a friend was out in the woods when her friend went missing."

"I need to talk to her." Stiles proclaimed. "Is there any way I can speak to her, I think I know how the victims are connected."

Melissa took Stiles to Caitlin's room where Stiles began asking the traumatized girl questions leading to the all-important question with the answer confirming his fears.

Beacon Hills High School

Scott met up with Chris Argent outside of the school to see the older man staring at something in the distance. Scott looked in the direction that Chris was staring, but saw nothing.

"Did you see something?" Scott asked ready to fight if needed.

"That over there." Chris pointed to a bug flying through the air. "It is interesting."

"That firefly?" Scott was confused.

"Fireflies in California aren't bio-luminescent." Chris explained.

"Does that mean anything?" Scott pressed a little.

"Not off the top of my head, but my gut telling me that it means something." Chris confessed.

The two looked behind them as Derek jogged up to them to tell the two that Cora and Boyd were on their way. The three then met up with Isaac and got into position to trap the two moon driven werewolves. The group watched as Cora and Boyd ran straight towards the doors of the high school only to see the two werewolves jump and climb over the school instead of going in. Chris and Derek groaned as Scott and Isaac stared at the school dumbfounded.

"We got to cut them off and corral them back into the school." Chris stated heading to the back of the school.

"Wait!" Isaac yelled rushing up to the older man. "I'm faster, I'll go."

With that Isaac took off hoping to cut off the other werewolves before they got into town. Isaac stumbled a bit when he heard small explosions and flashed of intense lights around the corner of the school. As he ran around the corner he watched as the two werewolves run into the school through the yellow back doors. Isaac wasted no time running full speed and closing the doors to trap the two in the school with Scott and Derek. Isaac run footsteps behind him and whipped around to see none other than Scott's ex-girlfriend Allison Argent standing tall on top of a school bus.

"What are you doing here?" Isaac growled as the images of one of their last encounters flashed in his mind.

"I'm helping." Allison simply said running off.

Isaac considered for a moment about going after the huntress that caused him and the pack so much pain then quickly decided against it. Isaac ran around to see Chris shutting the front doors of the school.

"Are they in there?" Isaac panted.

"Yes. Now it is up to Scott and Derek to get them into the boiler room." Chris nodded.

Inside the school

Derek slammed his body into Cora sending her smaller frame flying into the lockers. The sound caused Boyd to stop and turn growling at Derek. Scott quickly stood at Derek's side and nodded his head to the older male before they took off with Cora and Boyd hot on their heels. Scott and Derek with much more grace than Cora and Boyd descended the stairs and ran into the boiler room leaving the door open for the other two to follow them inside.

Cora and Boyd's eyes glowed as they walked into the boiler room looking in every direction to find Scott and Derek so they could rip them into shreds. The two feral werewolves reached the bottom of the steps and walked further into the room when Scott and Derek popped up and sprayed them with fire extinguishers. The two feral werewolves were temporarily blinded and swiping at thin air as Scott and Derek headed full speed towards the door of the boiler room. The two rushed out with Derek slamming and locking the door as the two feral werewolves slammed into the door a few times before giving up.

"Did that just work?" Derek asked in disbelief sliding down the wall to sit.

"It worked." Scott smiled as he pressed his ear to the door causing his smile to disappear quickly. "Oh no."

"What's wrong? Do you hear both their heartbeats?" Derek asked sitting straighter.

"That's the thing. I hear three heartbeats." Scott sighed wishing for once things could work out the first time.

Derek got up quickly and walked to the door grabbing the lever and sliding it back. Derek breathed deeply a few times before looking at Scott.

"I'm going in there, shut the door behind me." Derek ordered.

"If you go in there alone they'll kill you or you'll kill them." Scott stated.

"That's why I'm going in alone. I'm not putting you in that position. So far you been able to get through all of the things that happened with a black and white moral mentality. I respect that. I live in shades of grey, even if I don't want to sometimes." Derek spoke opening the door and rushing in leaving Scott alone with his thoughts.

Scott closed the door and pushed the lever back into place and listened as Derek fought the two feral werewolves. Scott stood at the metal door cringing every time he heard Derek grunts of pain. Scott knew Derek wasn't going to kill the two younger werewolves, but Scott didn't know if Derek was going to be able to last much longer. Soon Scott heard something else that made him feel much better. Scott heard Isaac's excited voice exclaiming that the sun was finally coming up. Scott flung the metal door open and ran inside hearing Isaac's heavy footfalls a few feet behind. Scott skidded to a stop with Isaac almost colliding with his back as he saw the shape of the Alpha.

Derek looked up at the two teen werewolves tiredly. He have been ripped up a lot by Cora and Boyd. Once the sun appeared, he assumed, the two passed out from exhaustion. Derek quickly told the two boys to grab Cora and Boyd and take them to his loft. Derek eyed Scott suspiciously as Scott growled at Isaac for trying to pick up Cora. Derek shook his head not wanting to think about the possibility of what that meant as he didn't want to answer Scott's questions about mates now that he seen that display.

"There's a teacher further back." Derek spoke shoving his thoughts to the back of his mind. "I'll take care of her. Make sure these two get some rest and lots of water."

The two teen boys gave a nod in understanding, Isaac heaved Boyd over his shoulder grunting about the weight while Scott delicately scooped up Cora into his arms looking at her with concern.

"What made you not kill them?" Scott asked tearing his eyes off of the brunette beauty in his arms.

"You did." Derek answered honestly walking away not seeing Scott's smile.

Derek walked further into boiler room that near suffocating with the smell of fear. Derek quickly located the beautiful brown hair brown eye teacher hiding behind a metal shelf. Derek put on his warmest smile and held his hand out to the woman, showing her he was no threat and softly saying that she was safe. The woman nervously reached out and took the Alpha's hand.

Beacon Hills Memorial Hospital Morgue

"Scott you need to see this." Stiles said leading Scott over to the bodies. "These two bodies are connected and when they find Emily she is going to be in a similar condition."

Scott looked at the bodies and winced as he looked at Heather's corpse. Scott eyes widened as he took in the injuries.

"You know what this mean don't you?" Stiles asked seeing his friend's face.

"Something I read this summer about ancient cultures and this looks like what the books described as a three-fold death…" Scott trailed off.

"All of them are virgins, Scott. They're sacrifices, human sacrifices." Stiles said solemnly. "We don't just have the Alpha Pack to worry about now."

Beacon Hills Preserve

Sheriff Stilinski rushed to where he heard the deputy shouting. Stilinski stopped as his tired eyes landed on the missing girl, Emily. Emily was tied to a tree with her throat slashed, a garrote around her neck, and her head bashed in. The sheriff sighed as he seen too much death in such a small town and now according to his son and Melissa McCall it appears to the sheriff that there is a serial killer loose on his town.