I know, I know. This chapter is horribly late. Long story short, I had some family business to take care of, and I just wasn't in the right headspace to write a chapter until now. :) Hope you guys understand, and thanks for all the lovely reviews.

Five Weeks Later

Allison was getting sick and tired of everyone pretending Stiles was fine.

After his craniotomy four weeks ago, he was moved into the Beacon Hills Hospital ICU, where nobody could visit him. About a week after that, Stiles woke up and started taking neurologic examinations. Apparently, the craniotomy worked wonders, and he just had to take some drugs for chemotherapy to erase the tumor completely. Since he started, the doctors had been telling Melissa and the Sherriff that Stiles was making a miraculous recovery, one that would be complete in about four more weeks.

Basically, by the end of this month, they could all expect Stiles to be good as new.

But Allison was having doubts. She was all about statistics and, according to brain tumor websites online, a tumor as serious as Stiles's wasn't one that just disappeared, even after eight weeks. It was possible, but only by about six percent. Then, of course, she discovered that demons could heal their hosts with the purpose of making them stronger physically. It made perfect sense, really. So much sense that she had to tell the others before this thing that was in Stiles got control.

When she voiced her opinion about this to the others in Derek's loft two weeks ago, their reactions were expected. Scott was mad-so mad that he just stayed quiet the entire time she was taking, uneven jaw set and grinding. Lydia walked off afterwards, giving Allison a clear 'I can't deal with this' look and slamming the door. She was especially sensitive to the news about Stiles, for reasons only known by her. Ethan and Isaac both sighed and shook their heads, looking extremely doubtful. The only person who even considered her theory was Aiden, surprisingly. He didn't say anything, but she knew that he was thinking about it by the way he was just staring of into space.

Since then, Lydia and Scott were always tense whenever she was around. Scott's behavior was something Allison understood, because he had always been protective of Stiles. He told her that, even if he was starting to consider her theory, he didn't want her to do anything about it until she was sure. On the other hand, Lydia's façade of the super bitch was puzzling Allison. Wasn't Lydia the one who had been acting like Stiles didn't exist after she pushed him into freezing tub of water? Allison just didn't get her right now, at all.

Isaac was also avoiding her, but she knew it was probably because he didn't want things to be even more awkward between them. Ever since Isaac had pushed her into that tub, things between them weren't on a friend level. It was more of a 'I want things to happen with us so damn bad, but everything is just really messed up, so I'll do my best not to jump your bones.' level. When he told her to drop the demon theory until things settled down, she had to practically restrain herself from hitting him, because she knew that things would never settle down, not in a million years. Especially not with a goddamn demon involved in the chaos.

So, Allison came to a conclusion. She had to find a way to prove a demon was in Stiles, and she had to do it fast.

Allison didn't know if her plan would work, but she felt better to the have Lydia with her and she drove to the hospital. The girls were still slightly tense around each other, but when Allison had asked for her help, the redhead had immediately come along.

"Why are we going with this bogus plan again?" Lydia turned her head to look at Allison, pursing her strawberry red lips. "I mean, your not even sure if it'll work."

"I'm pretty sure it will work!" Allison defended. "Look, as soon as we say God's name in Latin, the demon should reveal itself. If not, we just have to explain to Stiles how I was wrong."

Lydia rolled her eyes. "You mean really, really, idiotically wrong?" She paused for a second, stretching her hand out to turn the radio off. "Wait, wasn't that whole God's name thing in Supernatural?" When her friend stayed silent, she shook her head and scoffed. "I can't believe we're are doing this. This plan is from a t.v. show, Allison-"

"I know, I know, but some demonology websites say it actually works, ok?" Allison pulled into the hospital parking lot, stopping a little ways from the entrance.

Lydia walked towards he entrance with her, heels clicking. "Fine. But this is really low, even for you." She winked as they approached the desk.

Melissa looked up, seeing the girls and smiling politely. She didn't really spend time with either of them since Allison broke up with Scott, but she was still fond of them. "Hey guys, what can I do for you?" She put her hair up in a clip, looking tired. Ever since Stiles had his surgery, she had been taking extra shifts to take care of him. He wasn't really fond of the other nurses, especially because some of the tests he had to do involved needles, and the nurses weren't as kind as Melissa when it came to them.

"Can we talk to Stiles for a bit, Mrs. McCall?" Allison gave her a forced smile, which Lydia could see right through. "In health, we have to do this paper on diseases and injuries, and we were thinking of doing one on brain tumors."

Melissa raised an eyebrow at them, putting a hand on her hip. "Really? Because Scott told me that none of you were even taking health class this year." When Allison looked a little caught off guard, and Lydia rolled her eyes, she sighed. "He's in room 367. He might be asleep, but it's safe to wake him up." She smirked at them, writing something down on her clipboard.

As they walked away, Lydia gave a sly little smile. "I knew I liked her."

When they walked in, Stiles didn't look up, to wrapped up in Lord of the Rings. Allison was surprised when she heard Lydia clear her throat instead of scoffing. Stiles looked up, startled. "Jesus Christ-" He nearly fell off the bed, closing his book and putting on the table beside him. "Um, hey, guys."

Allison examined the boy, noticing his dark circles and clammier-than-usual hands. She squinted her eyes at him and tilted her head to the side. "You okay, Stiles?" Lydia shifted nervously behind her, seeing how the hunter reached for the knife hidden in the waistband of her skirt.

Stiles glanced up at them, giving a false little smile and scratching the side of his face lightly. "Yeah, um, I'm just a little tired-"

"Christo." Surprisingly, it was Lydia who said the word, looking right at Stiles as she did. For a second, the boy just looked confused, and Allison feared she was wrong. But of course, the lights started flickering in the room and the boy in front of them winced, shutting his eyes.

When he opened them, they were black. Stiles-the demon in Stiles, more like it-got up and smirked, tilting his head. He blinked, eyes going black to Stiles's soothing brown. His movements as he stepped forward were confident and graceful, not right with Stiles's body.

"Well I'll be damned." When it spoke, the voice was Stiles's, just so menacing and tough-even sexy, maybe-that it hurt Lydia's ears. "The hunter exposing me like the badass she is." He had an expression that morphed the face of Stiles into something evil, making both girls to hold their breath in fear. "To be honest, I expected it to be you."

"Who are you?" Lydia stepped up next to Allison and crossed her arms, looking brave. "Why are you inside Stiles?"

The demon turned, looking straight her. "You're Lydia, aren't you?" He chuckled, shaking his head. "Man, I gotta tell you, there isn't a day that goes by where the little lamb doesn't think of you." He took a step closer, resting his hands in his pockets. "Now I know what all the hype is about."

"Answer her," Allison demanded, holding the knife at her side. "Answer her, or I swear to god-"

"Don't you dare say God's name in vain, sweetheart." He smirked again. "You might attract something sinister."

When both of the girls glared at him, he sighed, putting his hands up. "Okay, tough crowd, I get it." He crossed his arms, taking a moment. "Well, long story short, I needed a host and Stiles was already on his breaking point when I stumbled upon him. Your little lamb was fainting, vomiting, and loosing sleep, the poor thing. It was only a matter of time before he killed himself, as well. Fun fact, Lydia, he was actually planning to do it the night you invited yourself over!" He chuckled at Lydia's stunned expression, sitting back down on the bed as relaxed as a person could be. The whole time, his voice was low and gravelly, faking sadness. "That was the night I, uh, invited myself into his head. I had no idea he would get a brain tumor, but I figured healing him would save me the trouble of finding another host."

"Why are you telling us this?" Lydia asked, shifting in her heels. Allison tightened the grip on her knife, feeling uneasy when the demon turned to her friend again.

He raised his eyebrows and shrugged, looking like Stiles for just a second. "You asked, sweetheart." The demon stood up and stepped towards her, stopping when he was close enough to look down at her face. As he took a strand of her strawberry blond hair in his hand, he smirked. "And not even Stiles's body could refuse you." Allison was tensing, about to hit him with her knife. As soon as the demon flashed his black eyes, she was pushed and pinned against the wall, knife across the room.

Lydia shut her eyes as her breath hitched. "If you're going to kill me, just get it over with." Even when she was scared, her voice was strong and sassy.

This made the demon chuckle and tugged his lips up into a gentle smile. "Please, gorgeous, I couldn't hurt you if I tried. Stiles is already screaming inside my head, and I couldn't imagine how aggravating he would be if I did kill you." He stepped back, letting Allison fall as he released her. "Also, I really want to see your reactions when I get Stiles's hands dirty."

"We'll tell Scott about you." Allison threatened him, standing up beside a horrified Lydia.

The demon raised an eyebrow, cocking his head. "Listen here, hunter. If either of you tell anyone about our little chat, I'll snap sweet Melissa's neck so fast that Scott won't have time to weep." He smirked at them again, something both girls were getting annoyed at. "Then, I'll put so much blood on Stiles's hands that he'll have nightmares about it for years. Your Stiles will be gone, permanently, and it will all be because you two couldn't keep your pretty mouths shut." The demon's eyes shifted black again, staying hat way as he stared at them. "Now, strut out that door in your little skirts and keep our little secret, okay?"

Both girls did as he said, letting out a breath of air when the door closed behind them. Lydia looked at Allison, blinking back tears of fear. "We need to get that thing out of Stiles, Allison."

"I know." Allison pursed her lips, looking back at the door with a troubled expression. "But if we tell anyone, he could hurt Melissa."

Lydia sighed and took her best friends hand as they walked back to the parking lot, taking the long way to avoid the front desk. She suddenly stopped, looking at Allison with wide eyes. "Allison, Stiles get's out of the hospital in one week for winter break. He might hurt someone. He might kill someone."

"Not while I'm involved." A female voice interrupted them, coming from behind the two girls. "That demonic son-of-a-bitch is no match against me."

When they turned, Allison scrunched her eyebrows suspiciously. "And who are you?"

The girl, a petite dirty-blond with brow eyes and tan skin, smiled politely and nonthreateningly. "Whoa, girly, keep your dagger down. I mean no harm, promise."

"Who are you?" Lydia repeated, sass in full swing.

The girl smiled kindly again, holding out her hand. "I'm Melissa Argent, your cousin."

Isaac didn't know what to expect when he got home from a study session with Scott, but it definitely wasn't his old Alpha.

He had walked from the school to the loft in ten minutes, talking on the phone with Allison, who had only told him that Stiles was asleep when they got there and didn't wake up. He couldn't hear her heartbeat through the phone, but could tell she was lying. Her voice was trembling slightly, and at one point he heard Lydia saying something in a panicked voice. When she told him that she would explain stuff tomorrow, he finally let her hang up.

As he walked out of the elevator on the loft floor, he could smell something familiar that only got stronger as he headed to the door. When he pulled it open, Derek was standing there, looking the same as he did when he left.

"Hey, Isaac."

Okay, so... yeah. I really hoped you liked the chapter, even with the major cliffhangers. [Anyone want to guess the backstory of Melissa Argent? Leave some comments!] Again, I apologize for being a week late.

Anyways, reviews and follows are appreciated. Seeya!

P.S. I just started watching Supernatural two days ago and I'm already on season two. My heart is breaking.

P.P.S. Melissa Argent is played by model Alexis Ren :)