On the way back to the car Dean started talking in a more confident manner, " Well, one thing I learned from dad; no matter what kind of shapeshifter it is, there's one sure way to kill it." He unlocked the trunk and pulled out a silver bullet." Millie nodded assuredly as Sam responded to seeing it, "A silver bullet to the heart." Dean smirked, "That's right." Millie felt her phone go off so she looked at it as Sam answered his.
Dad: Glad to hear from you, Mills. Still haven't found anything; found a new book through a connection and am hoping it holds some kind of clue. I'll be picking it up in a few days.
Millie: That's great news dad! Keep us in your thoughts, we are up against a shapeshifter.
Dad: Millie...be careful sweetie.
Millie put her phone away as she turned back to the boys, Sam looked severely upset. Millie asked with concern, "Sam, whats wrong?" He sighed as he rubbed his face, "That was Becky; she told the cops we went to the crime scene. She's pissed and wants us to stay away." Millie bit her lip, "I'm sorry Sam..." Dean looked around, adjusting his jacket, "I hate to say it, but that's exactly what I'm talking about. You lie to your friends because if they knew the real you they'd be freaked. It's just-it'd be easier if-" Sam cut him off, "If I was like you." Dean shrugged, "Hey, man, like it or not, we are not like other people. But I'll tell you one thing," he looked around at the town and then at Millie as he handed him a gun, "This whole gig... it ain't without perks." Sam took it as he scoffed a bit and tucked it inside the back of his pants. Soon the three of them were back down in the tunnels. Millie gagged to herself, "I'm never taking another case that involves the sewers. This is disgusting." Sam laughed as he flashed his light in her direction, "You'd think after living with two boys most of your life, the stink wouldn't bother you." She rolled her eyes, as she followed them down a corridor, "The smell isn't even comparable." Trash and rats littered the floors and Millie couldn't help but imagine a giant spider waiting for them somewhere, "Guys, I feel like we're in a D&D game. Some huge ass spider is gonna pop up somewhere or goblins!" She chuckled to herself as Dean yelled back at her, "Gawd Mills, when did you become such a nerd?" She flipped him off, "Since you deserted me and I made friends with Garth." He nodded with a grimace on his face, "touche."
Sam and Dean climbed up onto a higher ledge, Dean offering you his hand to help you up, "Thanks." He nodded in return as he looked forward to were Sam was going. "I think we're close to its it's lair." Sam spoke with out turning around, "Why do you say that?" Dean pointed his light at the spot as he spoke, "'Cause ther's another puke-induing pile next to your face." Sam jumped away from it, "oh, God." Millie gagged as she looked at it and then noticed another goop pile with a shoe and pants next to it, "It looks like it's lived here for awhile." Her body trembled in disgust as Sam's voice echoed of the walls, "Who knows how many murders he's gotten away with?" He turned around to look at them, jumping at what he saw, "Millie! Dean!" The duo turned as well. An asian looking man standing super close to her; he swiped at her knocking Millie into the wall before running back the way he had come. Sam fired at him a few times but missed. Millie gripped her arm as they watched him disappear while she stood up, "Fucking go after him. I'm fine." They did as instructed; Millie following along behind them.
When they surfaced through a manhole Millie breathed in the fresh air deeply as she looked around for the guy they were chasing, "He's gone." Sam nodded as he looked around as well, "Alright. Let's split up." Dean nodded, "All right. I'll meet you around the other side. Millie; you're with Sam." You nodded as you sprinted after him. The two of you maneuvered around the crowded sidewalk hiding your guns in you jackets. There was no sight of him in view. You huffed, "He's fucking vanished, Sam." He nodded frustratedly, "i know. Where's Dean?" Just as those words left his mouth Millie nodded towards the right, Dean coming into view, raising his arms, "Hey! Anything?" Sam shook his head, "No, he's gone." Dean nodded, "All right. Let's get back to the car." Millie followed them getting caught farther back with Dean as a car turned onto the pathway. She grabbed onto his arm causing him to jump, "Sorry Mills, wasn't expecting you to grab me." She smiled, "It's okay. I should have said something. I hate traffic." He nodded in agreement as they caught back up with Sam. Millie thought it was weird that he hadn't mentioned the time he rescued her from getting hit by a car like he normally did during traffic when they were on foot.
Sam looked back at them, "You think he found another way underground?" Dean nodded as they neared the car, "Probably. You got the keys?" Millie looked over at him from behind with a creased eyebrows; Dean always had h is keys on him. Baby was...well his baby. She noticed the look on Sam's face as he turned around while pulling the keys out, "Hey, didn't dad once face a shapeshifter in San Antonio?" Dean shook his head, "That was Austin; and it turned out not to be a shapeshifter. It was thought-form- a psychic projection. Remember?" Sam smiled as he jerked his head a bit, "Oh. Right. Here you go." He tossed the keys to him but Millie looked on in confusion. He gave her a knowing nod as he walked around the car while, 'Dean' opened the trunk. Sam pulled his gun as did Millie, "Don't move!" Dean stood up, slowly raising his arms as Millie spoke as well, "What have you done with him?" Dean looked over at her giving her a smile, "Millie, please...it's me all right?" She shook her head furiously, "No, I don't think so." Sam's voice came after, "Where's my brother?" Dean put his hand up, "You're about to shoot him. Sam, Millie, calm down." Sam spoke with confidence, "You caught those keys with your left. Your shoulder was hurt." He shrugged it off,"Yeah. It's better. What do you want me to do, cry?" Sam shook and jerked his head, "You're not my brother."
Dean walked towards him, "Why don't you pull the trigger then, hmm? Because you're not sure. Dude, you know me." Sam looked at him earnestly, "Don't." Millie watched as "Dean' swung out with a weapon from the trunk. She immediately high-tailed it into the alley and up onto a ladder that was closest. She knew the best way to to do this was get out of there so she could see where he went. She sighed as she watched him carry Sam's body to the closest manhole and jump down. Millie watched from her spot until the shapeshifter left and then she followed him. Sam and Dean were perfectly capable of taking care of them. Millie texted as she walked through the backyards of several houses.
Becky: " Look, I know you're upset and you only just met me but the man about o knock on your door is not Dean. He is a shapeshifter who's been going around killing woman in town. He killed Emily. I promise i am not lying please believe me if you want to live. Ill be there asap!"
As soon as she sent the message Millie took off at a run. She couldn't let Sam's friends' sister die. She ran as fast as she could get her legs to move. As she neared the front door she could hear screaming from inside she she thrust her arm into the nearest window and opened the door, "Rebecca!? Where are you?" Millie ran towards the sounds until she reached the billiard room. Becky was tied up on a chair, blood running down her face. "Dean stood next to her, "I wondered where you had run off too, Millie-Kat." The fact that some shapeshifter was calling you by their nickname pissed you off, "Don't call me that. I don't fucking know you." He lunged for her but she dodged to the left, bringing her arms down upon his back. She pulled out her switch blade, "Come on dipshit. I can fucking take you."
He chuckled as he stood up straight, "Oh, I don't think you can Mills. After all...I'm always having to come save your ass." You shrugged it off, "Shut up and fight." He lunged at you again. You slashed your blade at him, nicking his shoulder before rearing back and kicking him in the stomach as you twirled and punched him in the chest knocking him back a few paces. In the distance you hear multiple footsteps. You nodded in her direction before jumping out the window. You landed collapsing onto you knees to take the impact. The only thing was... neither Dean nor Sam could be found. You rested in the back of a truck for a few hours before running as fast as you could back to where the car had been. Dean stood waiting for you, "Mills, oh fucking Christ, thank god." She ran into his arms, "Dean, Becky's in trouble!" He hugged her back, "I know...we got separated when we went to get the car that it'd taken to Becky's." She nodded as he pulled away, "Come on lets go back to his lair and see if we can find anything?" Millie followed him into the sewer. Soon they were where Dean had been kept and found Becky tied up to a chair, "what happened?" She looked around panicked, "I was walking home and everything went white. Someone hit me over the head and I wound up in here just in time to see that thing turn into me. I don't know-how is that even possible?" Dean grabbed onto her, "Okay. Okay. It's okay. Come on. Can you walk?"
She nodded and Millie stood up offering her, her hand, "Okay. Come on. We need to move quickly. Sam went to see you." She nodded, "Oh my god, Sam!" Millie gave her a brief smile, her heart pounding for the same reason as Becky's, "Sam will be okay, I promise." She nodded taking Millie at her word. The three of you booked it back to the car and drove as fast as you could to Becky's house. Dean crashed through the front door, "Hey!" The shapeshifter looked back at Dean but he wasn't looking at you. You fired three rounds into his chest; knocking him back into wall. His body collapsed onto the chest below it. Becky ran over to him, "Sam! Are you?" Millie caught her breath before looking over at him in concern. He nodded towards her in thanks.
After a good nights sleep and shower Millie watched as Dean poured over a map. "So this is what you do? You, Millie and your brother. You hunt down these kinds of things?" Sam chuckled, "Yeah, pretty much." She shook her head as she fixed his collar, "I can't believe it." She shrugged, "i mean, I saw it with my own eyes and- I mean does everyone at school-nobody knows that you do this?" He shrugged as he took in a deep breath, "No." She smiles, "Did Jessica know?" Sam looked at her dejectedly, "no, She didn't." She nodded," Is must be lonely." He looked taken aback, "no, it's not so bad. I mean what can i do? It;s my family." She went on to say how much everyone missed him at school and although it panged your heart you coudnt help but mentally retaliate by how much you and Dean missed him too. The drive out of state was long and boring. Millie found herself falling asleep before she knew it.