Hey guys! I'm sorry I haven't posted in like a month I ended up taking a summer class and it literally took over all my time and I didn't have the energy to write, but since I finished my summer class I'm back to finish this up! Thanks for your reviews and all of you following and who favorite this story! Thank you so much! So I wrote this chapter a while ago but needed to edit it and all so here it is! Please enjoy :)

Song Inspiration: Avril Lavigne- Tomorrow: Basically her entire Let It Good album helped me out with this chapter, but this song just inspired me more!

Chapter Four Can You Keep a Secret?

Casey didn't sleep at all, if anything she got maybe three hours of sleep having stayed up all night planning for OD (Operation Derek.)

She was still a bit nervous because she knew once she told someone her secret there was a slight chance they could tell Derek, but Casey couldn't do this alone she needed help, and she already knew the perfect person.

"Hey, you okay?" Derek asked Casey as he drove them to school. She yawned again as an answer but waved her hand at him.

"Yeah I'm okay just a bit tired I didn't get much sleep last night." She told him. Derek frowned, he had a feeling Casey hadn't been getting much sleep these few days, she had light bruising under her eyes, and not to mention she dressed a little down with regular jeans and a light purple flannel button up shirt, that just made her look well not like Casey.

"I have hockey practice after school you gonna be alright?" Derek asked her as he pulled into the student parking lot. Casey nodded.

"Yeah I was actually gonna hang out with Emily." Casey said hoping her voice didn't give anything away. Derek just smiled at her.

"That's good you guys haven't been hanging out recently, everything going okay with you two?" he asked as he found a spot as he veered the Prince in-between two cars as he turned the it off turning to face Casey who just shrugged.

"Yeah, it's my fault I just feel…awkward around her." She confessed. Derek nodded of course Casey would feel weird around her best friend, but he felt like there was something else Casey wasn't telling him.

"Case, I know there are something's you don't want to tell me just yet but you can't shut Em out." He said.

Casey looked at Derek, she didn't think he'd notice how she was acting strange at first she thought he knew about her dreams, and already knowing that she knew about their relationship but he didn't know that, he just knew that Casey wasn't being honest with him.

"Derek…I'm just scared." She admitted.

It was déjà vu all over again, Derek felt like he was back in his room when Casey finally decided to stop running and admitted to being scared about how he made her feel. He was half expecting for Casey to tell him she's been getting a few of her memories back, and he didn't know whether to start celebrating or panicking.

"What if I don't get my memories back I'm going to live my life with half a year just gone, I could have done something, or decided to give up dancing or anything and I wouldn't know because I won't be able to remember." She said sounding hysterical and her eyes began to water. Derek unclicked his seatbelt as he scooted over grabbing Casey into a hug.

"Shh…it's going to be alright Casey." He told her softly. Casey sucked in a breath, she didn't mean to start going all weird on him, but just thinking that she'd never get her memories back bothered her, she couldn't even remember when she even started falling for Derek, or the moment he told her he loved her, and that's what she wanted. She needed those memories back.

"Okay..." she answered just letting him comfort her as she closed her eyes getting a good smell of his scent, he smelt of shampoo and a hint of her vanilla and peaches shower gel. She inhaled deeply, hoping he didn't notice her smelling him.

Derek so knew Casey was sniffing the back of his neck, but he didn't care that she now knew he used her gel, all that mattered was he had an excuse to just hold her.

"Come on Case, you're gonna be fine." He said pulling back as he wiped her tears from her face. Casey gave him a soft smile nodding her head as they walked out of the car, and without even thinking it Derek wrapped his arm around her shoulders while Casey leaned in her head resting on his shoulder, while she wrapped her arm around his waist.

The moment they walked into the school it was like old times, a few people gave them looks like they couldn't believe what they were seeing, while others just smiled thinking it was about time.

When Emily and Sam saw the two pair walking down the hall, Emily's jaw literally dropped while Sam just had the biggest smile on his face.

"Emily, Sam." Derek nodded at them as they reached Casey's locker.

"Hey guys." Sam said while Emily just stood there not knowing what was going on here, but whatever it was she was so going to ask Casey about it later after school.

"Casey, we still on after school?" she asked. Casey turned to look at her with a smile.

"Yeah, did you have anything in mind?"

Emily thought about it, she was surprised when Casey texted her last night asking to hang out after school. Which was the perfect opportunity to ask her what was going on between her and Derek.

"How about the mall? I've been dying to start prom shopping." Emily said, which was the wrong thing to say because Casey's smile fell, and Emily realized Casey had no clue prom was less than two weeks away.

"Casey…." Emily said, but Derek stopped her.

"It's okay Em, I'm gonna take Casey to class." Derek said wrapping his arm around her, Casey gave them a wave as she let Derek lead her away.

They watched the two of them go, and all Emily kept thinking was that she couldn't believe she said that.

"Em, don't beat yourself up." Sam said. Emily nodded.

"I know I shouldn't, but I do. I don't know how to act around her Sam." Emily said. Sam took her by the arm as they walked down the hall.

"Look Em, she's still the same Casey right now she's scared and from the looks of things something's going on between her and Derek." He said. Emily nodded of course she noticed that, it was like the accident never happened at all.

"She's going to need to talk to someone Emily." Sam said as they stood outside her class. It was there that Emily noticed that Sam was holding her arm gently and the way his light eyes stared at her normally Emily thought they were blue, but right then they were a bright green.

"Thanks Sam." Emily said, and the way he smiled at her, it made her stomach begin to flutter.

"Bye Em." Sam said letting go, and all Emily could do was stare after him as he walked down the hall, and Emily realized for the first time that Sam was actually pretty cute with that boyish face of his. She smiled heading inside as she took her seat going through her binder of information wondering if Sam was seeing anyone.

Derek wasn't paying attention, his mind kept going back to his girl and how he felt useless.

"Casey are you—"

"Don't ask me if I'm okay, please Derek." Casey said sounding miserable that it made him flinch.

"Sorry." He mumbled as they stood off to the side close to Casey's class. She sighed.

"No I should apologize, I just completely forgot about it just another thing I need to add to the memory loss." She said trying to smile, but it just came off forced.

"You don't have to go if you don't want to." Derek said. She shook her head.

"Actually I need to go I have to at least say I had a somewhat normal senior year." She said this time giving him that smile that always made him smile back.

"Sounds great, what time should I pick you up?" he joked. Casey blushed, but instead of saying something like they couldn't go, or she would rather go with Emily she ended up dropping a bomb on him.

"Well I guess you need to be ready by seven since we live under the same roof you shouldn't be late at all." She said with a smirk. Derek just looked at her stunned, did she really just say what he thought she said?

"What? Unless you already have a date it's fine." Casey said looking embarrassed and ready to bolt as she moved from under his arm but Derek took her hand before she got away.

"That depends, you didn't have some fairytale way to be asked to prom did you?" he asked playfully. His smile grew bigger when he saw Casey return the smile as she wrapped her fingers around his.

"No." she said softly. Derek just looked at Casey wanting to just grab her and kiss her, but he didn't know if that would end up scaring her so instead he squeezed her hand.

"Okay then, see you at lunch?" he asked. She smiled and once again Casey surprised Derek by kissing him on the cheek.

"Thanks Derek." She said giving him warm eyes before heading into class. Derek just stood there like an idiot not knowing what the hell just happened but whatever it was he didn't care. He turned around almost running into a trash bin, but again he didn't care that he almost pulled a klutzila move because for a moment he had his girl back.

"How is this not freaking out?" Emily asked as Casey desperately looked through racks of dresses.

"Okay what happened? You were fine at lunch, super excited in the car how did you get like this?" Emily asked. Casey pulled out a pale pasty dressed making a face as she shoved it back.

"Until I realized that prom is two weeks away and I have no dress, no shoes, no idea how I'm gonna do my hair, and what color of lipstick I should wear!" Casey exclaimed as she went to another rack. Emily followed her.

"Okay when you put it that way, it makes sense." Emily said grabbing two dresses from the rack as she moved to another. Casey pulled three dresses randomly from the rack following after her friend.

"So any ideas who you're going with? I can give you the list I've gathered so far with whose single, taken, or hasn't asked anyone yet." Emily said pulling out a long golden yellow dress that went to the floor, exposing her shoulders, and had small gems around the center.

"You need to try that, and thanks but I'm already going with someone." Casey said deciding she needed to try on the dresses on her arm.

"Wait! What do you mean you're going with someone?" Emily asked following her as she went into the empty stall next to Casey.

"Did someone ask you? Was it Sam! Or did you say yes to Truman?" Emily asked coming out wearing the yellow dress waiting for Casey.

"Why would I go with Sam were just friends? And I already told you I want nothing to do with Truman." Casey said coming out her eyes going wide seeing Emily.

"Oh Em, that's the one ignore the other dresses you look stunning." Casey said.

"I do?" Emily asked turning around to a three way mirror behind her and sure enough Casey was right. The golden yellow dress looked perfect on her, the front exposed a bit of her cleavage but it wasn't too bad. Not to mention it exposed her entire back and when she lifted the dress she noticed there was a slit open on the side.

"I love it!" Emily exclaimed happily. Casey smiled turning back to change into another dress.

"Casey who are you going to the dance?" Emily asked as she went back in to change into her clothes. Casey sighed, she knew she had to tell Em, sooner or later she was going to find out.

"Derek."

"DEREK!" Emily shouted as she tripped over her foot trying to put her pants on.

"Emily are you okay?" Casey asked coming out.

"Fine…just fine you surprised me when did this happen?" she asked coming out with the rest of the dresses putting them all back expect for the yellow one in her hand. Casey blushed slightly.

"This morning, he was just joking saying if he should pick me up at seven and I told him that he didn't have to pick me, he just had to be ready by seven and then he asked me." Casey said fidgeting in her dress not seeing the big smile on Emily's face.

"So what's going on between you two? Don't think I haven't noticed the way you guys acted this morning." Emily said.

Casey sighed as she turned to face the mirror and the moment she did her face brighten as she turned to look at Emily.

"This is it." She said.

Emily looked at her confused until she finally noticed the dress that Casey was wearing, and agreed nodding her head.

"If you're going to the dance with Derek, then that's defiantly the perfect dress."

Casey squealed, as she twirled in her dress and in that moment she was reminded of another dance.

Casey was crying as she wiped her tears how could Max do this to her? How could he go out and get the most hideous tux on the biggest night of their life? It was Prom, and instead of the best night of her life, she was crying miserably in her room looking like one of the ugly step-sisters. Could this night get any worse?

"Knock, knock."

She turned from her bed to see Derek of all people just standing there looking handsome in his white tux, while she must have looked like a hot mess.

"Not now Derek, or did you come to gloat?" she asked wiping her tears.

"I wish, but I'm not here to tell you I told you so I'm here to make this the best night of your life." He said walking in, it was then that Casey noticed the black bag that he was holding. She stood up from her bed unzipping the bag, and she almost started crying again from happiness.

"Derek…"

"I know, it's the perfect dress." He said with a smirk.

"Now let's get you ready, ladies!" He called turning around just as Nora, Lizzie, and Marty came running back inside as Derek stepped out.

Twenty minutes later Casey stood outside the entrance fidgeting with her hair.

"Casey can you please stop." Derek said reaching out grabbing her hand. She stopped to look at him.

"Is…Max in there?" she asked. Derek frowned.

"Um…honestly? No. Emily called to let him know we got you a new dress but he said he didn't want to go anymore."

Casey nodded, making sure she didn't start crying after all she's the one who pushed Max away when he was just being sweet to her, she wouldn't blame him if he decided to break up with her.

"So I guess I'm gonna be your third wheel with you and Sally." She said.

Now it was Derek's turn to frown as he rubbed the back of his neck not looking at her.

"Yeah, Sally's not coming her ex is in town so she's with him."

"Oh Derek, I'm sorry." Casey said sincerely. Derek shrugged but he smiled at her as he tightened his hold on her hand.

"Since are dates ditched us…ready for a night to remember?" he asked.

Casey opened her mouth to protest that they couldn't go together but the moment they stepped inside she was speechless, everything was beautiful. They set up the perfect decorations, flowers along the walls, and tables. Lights hanging above the ceiling making it look like stars, not to mention the perfect guy holding her hand. This was exactly how she imagined this night to be.

"Dance?" Derek asked leading her to the dance floor, and it was then Casey noticed that Derek was nervous. Casey was about to tell him they shouldn't be dancing considering how they once felt for each other and what happened between them, but this was her night and Casey wanted to spend it with Derek.

"Okay." She said with a smile, it was perfect that the next song was a slow dance as she wrapped her hands around his neck, and he placed his on her waist and they swayed to the music.

"Derek…why did you do all this?" she asked curiously. Derek signed as he looked at her.

"Because I care about you Case." He said softly.

"Don't…not now, please." She begged him. Derek closed his eyes, but opened them with determination.

"I'm not gonna give up Casey I will never give up on us." He said.

Casey bit her lip, but didn't say anything. She was still with Max, and Derek had Sally it didn't matter if they somehow made this all work, how would they tell their family? Their parents? Casey leaned her head on Derek's shoulder knowing this would be the last time she would ever be in his arms again.

The song ended, and another one picked up this time a fast one. Derek smirked and before she could make up an excuse to leave, Derek still holding her hand started twirling her around.

"Der-ek!" she squealed laughing.

"The night's not over yet." He said smiling as they started dancing around in a circle. Casey smiled as she danced with Derek forgetting about Max, and everyone else.

It was just her and Derek dancing under the stars.

"Casey?"

Casey blinked, she was sitting on the floor in the dressing room with Emily crouched in front of her looking worried.

"I'm okay…I just twirled too fast." She mumbled as she stood up.

"We should get you some food, you didn't eat much at lunch it could be that." Emily said.

"Yeah, I'm just gonna change." Casey said giving her friend a weak smile going back into her dressing room. Twenty minutes later after purchasing their dresses they were sitting in the back booth at Smelly Nellies.

"Derek's not here?" Emily asked as she looked around. Casey shook her head.

"Not today, there couch surprised them with an extra practice I guess there last game is coming up." Casey said taking a sip of her ice tea. Emily nodded.

"Okay so I'm gonna ask you again and you better give me an answer, what's going on between you and Derek?"

Casey blushed as she played with her straw, not looking at her friend.

"I don't know honestly, he's just been so sweet to me lately not like the Derek I'm used to." She confessed. Emily nodded placing her hands on the table.

"Derek isn't the same guy you know, he's changed in the past year." She said hoping Casey can see that Derek is the guy for her without freaking out.

"Emily…can I tell you something?" Casey suddenly asked.

"Yeah, what's up?" Emily asked taking a sip of her soda.

"I know Derek is my boyfriend." Casey said without hesitating or rushing out, she wanted Emily to hear her, which she did.

Emily started coughing having choked on her drink, which she also accidently dropped all over the table after Casey told her.

"Sorry, bad timing." Casey said handing her some napkins, Emily just gave her the evil eye as she wiped herself while Casey picked up her drink. The waiter, came cleaning the mess and telling Emily she'll re-fill her drink the moment the waiter left Emily started asking questions.

"How do you know about Derek? Did he tell you? Is that why you guys look like a couple again, and why didn't you tell me sooner!" Emily exclaimed as she continued to ask more questions making Casey sigh.

"Emily, Derek didn't tell me." She said making her friend stop talking for a moment. Casey knew this was it, Emily was the only person she could trust with this she was her best friend and at the moment she couldn't keep quiet.

"I'm slowly getting my memoires back." She confessed. Emily's jaw dropped for the second time that day. Casey just waited patiently for her friend to let everything sink it, it took five minutes which by that time the waiter came back with their food and Emily's drink.

"Em, snap out it already." Casey said snapping her fingers in her face. Emily blinked, and instead of asking a million questions, she just asked one.

"When are you going to tell Derek?"

Casey frowned as she started playing with her salad, she didn't know when she was going to tell Derek all of this was just getting out of control.

"I can't tell him yet, I don't even know how I feel for him I mean I know I love him but when did it all start? How have we been keeping this from our parents?" she asked.

"Casey these are things you have to ask Derek, he knew you'd freak out if he told you the truth about you guys. It's been killing him, knowing it was his fault this happened to you." Emily said.

Casey frowned, "But it wasn't his fault I've told him what happened to me; losing my memories had nothing to do with him." She said defensively.

Emily groaned, "Casey, you got mad at Derek when he told you he wasn't going to college he told you he was going to travel through Europe and he wanted you to come with him. You got mad and told him he was ruining everything, you let go of his hand and then hit the tree."

Casey dropped her fork, this was her fault.

No, it wasn't anyone's fault it had just been another Derek/Casey fight that had resulted in her getting hurt, but it wasn't their fault.

"Oh Em, how am I gonna fix this?" Casey asked.

Emily reached over placing her hand over Casey she smiled almost close to tears as she just looked at her best friend. Emily couldn't imagine all the pressure that Casey had on herself, losing her memoires, finding out so much has changed, and then everything with Derek. If that was her, Emily would have lost it, but not Casey. She always managed to keep everything under control and Emily was so grateful that Casey had confided in her that she knew she had to repay Casey by helping her out. It's what best friends do after all.

"Casey, it's going to be okay. You have me now." she told her.

Casey in spite of everything laughed as she nodded feeling tears in her own eyes.

"Okay, thanks Em." She said. Emily just shrugged.

"What are friends for?"

Both girls went back to eating and talking about what Casey should do with the whole Derek situation, they were so busy talking that neither of them realized that someone had been listening in on them the whole entire time.

Someone who had heard everything, especially the part about Casey getting her memories back, clutching his hands so tight he left through the back room leaving the two girls while he started forming his own plan.

OHHHH so any ideas who was the guy listening in on Casey and Emily? I'll give you 3 hints it's either:

A. Derek (there's a good chance it's him)

B. Truman (there's another good chance it might be him)

C. Sam (I just needed a third person but it could be him too)

Please review your answers and tell me what you thought about this chapter and I'll update as fast as I can! Thank you everyone!