"It's our birthday and we can club if we want to," Nyah said to her sister Clary in a sing-songy tone set to the tune of 'It's my party and I'll cry if I want to' as she danced her way into Clary's bedroom.

Clary laughed and moved the phone away from her mouth a little so she could address her twin. "Simon says you should stick to writing."

"My voice is beautiful and you know it," Nyah spoke loudly with a grin.

Clary and Nyah were identical except for one feature – their hair. Clary's hair was dark red like their mother's, Nyah's was a very dark brown that almost border-lined on black. Other than that, they were identical.

"Sorry, I don't agree," Clary grinned teasingly to her sister before heading off into the kitchen.

Nyah gasped and followed. "I'll have you know that our music teacher asked me to have a solo."

"No," Clary countered, "she asked you to sing so low, so the others couldn't hear you"

Nyah jokingly swatted at her sister then looked towards the door when she heard their mom come home. "Hey, mom," Nyah greeted, taking a bag of groceries from her.

"Hello, sweetie," Jocelyn replied, giving her daughter a quick kiss before doing the same to Clary.

"Hi, mom," Clary answered then said, "Simon," in reference to who she was talking to then waved at Luke when he too came in. As Clary proceeded with her phone conversation, she went back into her bedroom.

"Do they ever not talk to each other?" Luke asked with a chuckle as he started to put groceries away.

Nyah shrugged with a laugh and took a seat at the kitchen counter. It was then she noticed a doodle that Clary did on the pad of Post-It notes. "Mom," she said worriedly and instantly showed it to her.

Jocelyn looked at the paper then showed Luke what was drawn – a Rune. She took the paper off and crumbled it up because of it. Looking to her daughter, she said, "Nyah."

Nyah nodded, "I know."

At that moment Clary came out of the bedroom and went to get her Post-It because there was a number she needed on it. Only it was no longer there. "Did you just use the..." she started to ask but her mom cut her off.

"How are you feeling?" Jocelyn asked, casually.

"Fine, why?" Clary asked, going over to Nyah with a 'what's going on' expression on her face.

Nyah didn't get a chance to respond because their mother said, "Make sure you come straight home tonight."

"Mom, come on, it's just a poetry meeting," Clary sighed.

Jocelyn looked at her girls lovingly, "I know."

"Later, mom," Nyah gave her a look that said 'I got this' before grabbing her red zipper-hoodie off the rack while Clary grabbed her own jean jacket then the pair went out the door.

Once the girls were gone, Luke turned to Jocelyn. "You need to talk to her, Jocelyn."

"She's not ready, not yet," Jocelyn countered. "And until she is, Nyah will protect her."

Luke didn't agree. "Clary is ready. You're not. And it's not fair to Nyah, Jocelyn. She was created for that world but not allowed to be a part of it? It's not fair to her."

"Nyah has not once complained, Luke," Jocelyn retorted. "She knows her place is at Clary's side."

Luke sighed because he was about to ask something that he probably shouldn't have, "Did you ever give her a choice?"

Jocelyn's face hardened a little bit and didn't respond to him other than walking out of the room.

The girls met up with Simon so they could head to his friend's poetry reading. Nyah greeted him as he always did by leaping onto his back for a piggy back ride. And as always he responded with, "In case you haven't noticed – I'm weak and scrawny and one day you're going to break my back."

Nyah just grinned and held on tighter as she said, "But it's so much fun!"

Simon rolled his eyes and let out a breath of relief when she finally got off him. "Your sister is insane," Simon pointed at as he gestured to Nyah.

Clary laughed at this display. "Oh, I know."

"Hey, no ganging up on me here. I'm watching you." Nyah pointed to her eyes then at each of them a couple times to emphasize this.

Simon chuckled and opened the door to the coffee shop where his friend was doing the reading. "Thanks for coming to this you guys, his poetry means a lot to him."

"No problem," they answered in unison, followed by, "I was going to say that."

Simon led the girls to an open table. "I swear you two have one brain sometimes."

"If anyone has a shared brain it's Nyah and my mom." Clary wasn't offended or anything like that about it, in fact she thought it was pretty cool.

"Your face and mom's brain," Nyah answered in a 'hmm' way, "I can get down with that."

"And I can get down with coffee," Simon interjected and proceeded to get the three of them just that before the poetry began.

"So," Clary began once Simon was out of earshot, "when are you going to ask Simon out?"

If Nyah was drinking something then she totally would have spit it out. "Say what now?" When Clary was about to repeat it, Nyah shot up her hand and said, "No, no, I heard you. I just can't believe you asked me that."

"Why not?" Clary laughed. "You two flirt all the time."

Nyah was taken way aback with that statement. "Uh, no we don't. Simon is so not my type. Besides, he's into someone else."

This was the first Clary had heard of this. "Who?"

Nyah didn't get a chance to answer because Simon had come back to the table with their coffees and she wasn't about to say something while he was there.

"So, ladies, what did I miss?" Simon asked, looking at them.

"Nothing," they answered together as they added sugar to their coffees in perfect sync. Only Clary added a little design to the top of hers – another Rune – something that Nyah definitely noticed.

When the poetry reading was over, the trio headed out and finally Nyah lost it with laughter as they walked down the street, "Oh my god, that was so bad."

Clary had to agreed. "Yeah, it was. Simon, as his friend, I think you should tell him."

"Hey," Simon defended, "maybe his poetry is great and we just don't know it yet."

Clary and Nyah looked at each other with 'uh-huh' expressions before saying together, "I don't think so."

"You two have been doing that for as long as I've known you and I'm still not used to it!" It threw Simon every single time.

Nyah rubbed her hands together like a mad scientist and said in that kind of voice, "Excellent. Our evil plan is working."

Clary laughed at her sister's behavior then noticed the club 'Pandemonium' they were passing. She stopped to say to the others, "Hey, let's go in here. I want to ask what that symbol means."

Simon didn't think that was a good idea. "Clary, we'll never get in."

"Such the eternal optimist," Clary teased as she took down her hair.

"Clary, mom wanted us to go right home, remember?" Nyah knew what this place was and knew they shouldn't go in there.

Clary sighed with a smile. "Come on, Nyah, just go with it for once."

"Clary..." Nyah tried to stop her, but it was too late.

Clary went up to the security guy and said, "Hey, what does that symbol mean?"

"What symbol?" he asked and Simon said the same thing, "Yeah, what symbol?"

"You don't see it?" Clary asked, looking at Simon, "It's right there."

Nyah noticed how one of the guys in the Gothic outfit whispered to the security guy and really felt like they should get the hell out of dodge. "Clar, come on, let's just go somewhere else."

The security guy moved aside the rope for them to come through. "Go on in."

Clary looked at Nyah with an 'oooo' expression before heading inside with Simon who said, "Okay, that was cool."

Nyah's fingers twitched at her sides before following them into the club. All the while she kept thinking over and over 'This is bad. This is very, very bad'.

The three of them stuck out like a sore thumb because of how they were dressed, but Clary didn't care. She just started dancing and Simon went to get them some drinks. Clary rolled her eyes when Nyah just stood there beside her. "Always the watchful eye," she teased. "Loosen up, Ny! Dance with me!"

Nyah let out a groan before doing as her sister asked because she'd never hear the end of it otherwise. But that stopped when she saw the blue-eyed guy who got them into the club go over to a woman wearing a white dress. "Clary, time to go." She took hold of her sister's hand and tried pulling her away.

"What? No," Clary countered, taking her hand back. "What's with you tonight?" She scoffed and walked away.

"Dammit, Clary!" Nyah shouted and followed her over to a chain link curtain because Clary seemed to be captivated by something.

Nyah looked through and saw a pair of Shadowhunters holding the blue-eyed guy. "Clary, we're leaving, now!" Nyah didn't get Clary out of there fast enough because the third Shadowhunter drove a Blade through the blue-eyed guy, killing him.

Clary let out a scream that caught the attention of the Shadowhunters, especially the third blonde one.

Nyah turned Clary around and caught sight of the blonde's face. Suffice it to say, as soon as she saw him she was frozen – completely captivated. It even took her a moment to realize that Simon had come over to check on them. Finally, Nyah kicked her ass into gear and got Clary out of there.

"What happened?!" Simon almost shouted at them as they rushed out of the club.

"They killed the guy who let us in!" Clary shouted back, quickly walking down the street.

"Clary, there was nothing there," Simon countered because he couldn't see it.

"Nyah saw it!" Clary stopped and waved her hand at her, "Tell him!"

Nyah wanted to tell Clary everything but she had to listen to Jocelyn about this, so she lied. "I didn't see anything. Maybe there was something put in your coffee. Or did someone slip you something when I wasn't looking?"

"You're lying!" Clary shouted back, exasperatedly.

Simon didn't want this to blow out of proportion so he hailed a cab, saying "Let's just go home."

Clary wasn't going to argue with that but she didn't appreciate how Nyah didn't take her side.

Clary was still reeling over what happened at the club and when they got home, she went straight to her room, practically slamming the door behind her.

That sound woke Jocelyn up who had fallen asleep in her studio area. "Nyah, what happened?"

Nyah crossed her arms as she looked at her mother. "You have to talk to her, Mom. I can't, so you have to."

Jocelyn was about to say something to her daughter but she stormed off to her own room before she had the chance. Jocelyn slouched down into her seat with a heavy sigh because she knew Nyah was right. She also knew that Luke was right as well – what she was asking of Nyah wasn't fair of her and she never did give her the choice.

Once in her room, Nyah tossed aside her zipper-hoodie and fell back on the bed. "Stupid, stupid, stupid." She knew she never should have let Clary step one foot into that club but now it was too late. Clary saw what she saw and Nyah had to lie to her about it.

To take her mind off things, Nyah pulled her sketchbook out from under her pillow and started to draw. This was the one thing she had to herself since neither Clary or Jocelyn knew she could do it. Nyah pulled out a pencil and started sketching the blonde guy from the club – the Shadowhunter. His face was embedded into her mind and she couldn't get him out of it. Honestly...she didn't even want to.

The next day, Nyah woke up really late and when she left her room, she was instantly greeted by Jocelyn saying, "Clary left with Simon to Java Jones. Go with them."

Nyah brought her hands to her face with a groan. "I really don't want to, Mom."

Jocelyn let out a deep breath. "I'm sorry about that, but you have to do what I say. Go with them. You have to protect Clary."

"I know!" Nyah shouted back then sighed heavily. "I'm going to do it because I have to. Just like everything else you say to me."

Jocelyn knew exactly what Nyah was referring to even though her comment was vague. "I'm sorry I won't allow you to see him, Nyah, but you know how dangerous it is."

Nyah pulled on her jacket with a scoff. "Yeah, I know, but it sucks."

Jocelyn followed Nyah to the door and before she left she said, "Protect Clary, whatever it takes. And I love you."

Nyah sometimes wondered whether or not that was true but she always answered with her truth, "I love you, too." Before anything else was said, Nyah scurried off at a quickened pace to catch up with Simon and Clary.

Nyah got to the coffee shop and found Simon but no Clary. She went right over to Simon and asked in the most 'need-to-know' way possible, "Where is she?"

"Clary was acting all weird and went out the back." Simon waved his hand in that direction and threw both hands up when Nyah took off. "What is with them?"

Nyah burst out the door and found Clary talking to the blonde Shadowhunter from the club. She instantly stood in front of her sister in a protective manner without saying a word.

The Shadowhunter tilted his head a little as he looked at Nyah. "You are who I saw." He looked between the girls. "Twins. How is that possible?"

Clary held onto her sister tight. "He's a cold-blooded killer! I know what I saw!"

"You think you know," he retorted, pointing at her.

Clary's hand shot out when she saw the mark on his inner wrist. When she realized it was the same mark that she'd been drawing, she pulled out the paper and showed it to him, "Why am I drawing this?"

As he took the paper, Nyah said, "Clary, forget about this. Let's just go."

"You won't tell me anything!" Clary shouted, almost on the verge of tears, "So maybe he will."

"I can't!" Nyah emotionally shot back. "I can't."

The Shadowhunter looked at the paper and saw the Rune she drew. "I was right. You're not Mundanes. But how can you possibly be twins?"

Clary turned her attention away from her sister and went over to the blonde. "Excuse me? What's a Mundane?"

"Someone from the human world," he simply answered.

Clary had no idea what was happening. "If my sister and I aren't humans, then what are we?"

"When did this start?" he asked, holding up the paper.

Clary snatched it back, "No, why am I drawing this? Answer me!"

"Clary, please, we have to go." Nyah tried to urge her sister of this as she looked around and realized people from a nearby parking lot were starting to stare. Nyah's phone started to ring so she answered it as soon as she saw it was their mom. "It's mom," Nyah said to Clary before answering it. "Mom, we're coming home."

Clary went to stand next to Nyah to hear what their mom had to say.

"No, no, no!" Jocelyn exclaimed from the other end of the line. "You can't come home. Call Luke, tell him that Valentine is alive and that he's found me. And Nyah, don't worry and stay calm. You do your best work that way. I love you, girls."

The girls heard her shouting 'no!' followed by a lot of crashing noises.

Clary snatched the phone from Nyah. "Mom? Mom!" She took off running but stopped when she realized Nyah wasn't following. "What are you doing?! Mom needs us!"

"I can't," Nyah regrettably answered. "I have to listen to her."

Clary rushed over to her sister saying, "I need you to come with me."

Nyah felt that she could go with Clary now because Jocelyn did tell her to protect Clary no matter what and this applied. She took her sister's hand and started running, leaving the Shadowhunter in their wake.

While they were running, Nyah tried calling Luke but he didn't answer so she left a voicemail, "Call me back!"

The girls ran like hell back to their home and when they got there, they found the door had been completely broken down and the whole place had been trashed. "Mom?" Clary called out.

Nyah stepped in front of Clary, saying "Stay behind me." With Nyah in the lead, they slowly made their way through the apartment to try and find their mom. When they reached Nyah's room, they found a large Rottweiler-looking dog there. "Run!" Nyah shouted then she and her sister booked it.

They ran into the bathroom, standing at the side of the door, and when the dog ran in they quickly got out and closed the door behind them. Unfortunately it wasn't going to last for long because the parts of the door had been broken through and the dog started to change.

"Why – why is that dog turning into something fro Resident Evil!" Clary shouted, completely freaking out.

Nyah knew it was only a matter of time before it shifted so she quickly said to Clary, "Get out of here, Clar. I'll be right behind you." She could tell her sister was about to object so she quickly added in, "Listen to me for once! GO!"

Clary didn't want to leave her sister there but she ran out of the apartment with the intention of getting help.

The creature was now crawling out of the door with a pure intent to kill. Nyah ran into the kitchen and prepared herself. "Please work, please work, please work," she whispered over and over as she closed her eyes. When Nyah opened them they were cat-like and just as the creature charged towards her, she threw out her hands and shouted, "Accendo!" A stream of fire shot out of her hands and upon impact with the creature it caused an explosion that burst out the window. The force of it threw Nyah back into the refrigerator.

Nyah slid to the floor with a groan because between the magic and the impact, it took a lot out of her. Finally, she took a deep breath and pulled herself to her feet only to find the creature was reconstituting itself. "Oh, you have got to be kidding me!"

Nyah made a run for the door but the creature wrapped itself around her leg and threw her back. She hit the floor hard and was scrambling to find something to fight off the creature with because there was no way she'd be able to use her magic like that again. There was no need though, because the blonde Shadowhunter appeared and drove his Blade through it, killing it.

Nyah fell back on the floor with a breath of relief before raising her hand with a thumbs up. "Nice timing."

"Thank your sister for that," he replied and just then, Clary rushed back in, shouting, "What was that thing?!"

"You wouldn't believe me if I told you," he replied then held out his hand to give her assistance to her feet.

Nyah accepted the help and stood. "Thanks," she said without really looking at him because every time she looked into his eyes she felt drawn to him. This distracted her and distractions were something she couldn't afford.

Clary was starting to freak out because of all that was going on. "Nyah..." she couldn't even get out her question because of it.

Nyah rushed over to Clary and held her tight. "It's okay, Clar, it's dead. You're okay."

Clary pulled back and shook her head. "No. No, I'm not alright. What was that thing, Nyah?"

Nyah opened her mouth to tell her everything but no words came out. She still couldn't say it. "I can't," Nyah regrettably answered. "I can't."

The Shadowhunter answered for her. "It was a Demon."

Clary was still in shock as she said, "I don't believe you."

"It's true," he countered. "And that thing you two saw me kill at the club, that was also a Demon. Demons can take possession of any living creature. You can't trust anyone. Even people you think you know."

"So why should I trust you?" Clary asked, not really sure she should.

"You trusted me enough to tell me what was going on in here," he replied, "And I did just save your sister's life."

Clary didn't answer that because she was going to find some way to find out what happened and this led her to run down and knock at their downstairs neighbor's door.

Nyah was about to follow but stopped when the Shadowhunter spoke.

"You know all about this, don't you?" he asked, suspecting he was in the right.

Nyah could answer his question because she was only told not to tell Clary. Turning back to face him, she had to catch her breath before answering, "More or less, yeah."

"You're fascinating," he admitted, feeling the same captivated sense as she.

Nyah made herself look away because she had to go after Clary, so without another word, she did.

Nyah hurried down the stairs and found Clary pounding on their neighbor Dorothea's door, asking if she knew what happened to their mom.

Dorothea opened the door and looked at the girls then to the Shadowhunter behind them. Clary noticed this and gasped, "You can see this guy?"

"Of course she can," he answered. "She's a Witch."

Clary pushed herself into Dorothea's apartment and Nyah followed. The Shadowhunter did as well, saying to Dorothea, "Downgraded from a gingerbread house to a one-bedroom, did you?"

Nyah backhanded his arm for saying that. "Not nice."

Clary got right down to what was important. "Do you know what happened to our mom?"

"Sorry, I have no idea," Dorothea replied.

Clary couldn't believe this or how calm her sister was being while she was just freaking the hell out. "Nyah what was that name mom said? The one who – ..."

Nyah knew the answer to that. "Valentine. Mom said Valentine found her."

Dorothea looked right at the girls and on the firmer side requested, "You better leave."

Clary wasn't going to go anywhere. "No, not until you tell us something. Anything, please."

Dorothea looked at Nyah before sighing inwardly and closing the door. She exchanged looks with the Shadowhunter before leaving the room to get her Tarot. Once she returned, she placed the deck on the table. "Let's see what the cards have to say."

"I'm sorry, but you know I don't believe in any of this stuff." Clary didn't understand how those cards would help them.

Nyah sighed and brought Clary over to the table. "Sit, Clary. Trust me. I may not be able to say squat but I can't stop others."

Clary sat down with a reluctant huff then Dorothea said, "Run your hands over the cards." Clary was about to do that but recognized the artwork. "Our mom painted these."

Dorothea confirmed this. "Yes, they were a gift. Now let's see which card gets picked."

Clary slowly waved her hand over the cards and stopped when it was as if one of the cards stuck right to her hand. She pulled it from the rest and turned it over to show a single cup.

"The Ace of Cups," Dorothea explained.

The Shadowhunter got a look at the card. "That's the Mortal Cup."

Clary didn't understand any of this. "So?"

"Ignore him," Dorothea said to Clary but that didn't stop him from speaking.

"It's a Mortal Instrument, one of the three holy objects of my people." He pointed to the card and demanded to know, "What's it doing here?"

Clary looked at Nyah for some sort of answer but when Nyah averted her eyes, she spoke to the others. "I don't understand. What does any of this have to do with our mom?"

"Your mother was a Shadowhunter," Dorothea explained, then cocked her head towards the blonde, "like him."

Clary shook her head. "No, my mom was a painter."

"Your mother never told you any of this, did she?" Dorothea gathered. "And I assume you weren't permitted to."

Nyah leaned against the wall with a sigh. "That's about right."

Clary scoffed and tossed the card down. "All I know is that our mother is gone and I have no idea where to start looking for her."

Dorothea went over to Clary, saying "Let me read you."

While this was being attempted, Jace picked up the Cup card and looked it over but in the corner of his eye, he was looking right at Nyah. There was just something about her that he couldn't seem to shake and was determined to figure out what that was.

Dorothea tried to see into Clary's mind but failed. "There's something blocking your mind." She went over to her door and opened it. "My guess is your mother hired someone very skilled to protect you."

Clary stood and went over to her. "From what?"

"Your own memories," Dorothea replied.

Clary looked over at her sister. "But what about Nyah?"

Dorothea sighed in an almost pitiful manner when she faced Nyah. "She had no choice."

Clary felt like her mind was exploding. "What? None of this makes any sense! I don't remember anything that my mom would want me to forget!"

At that moment, they heard a sound coming the apartment above – their apartment. Clary was going to get answers one way or another so she grabbed a fire extinguisher off the wall and ran upstairs.

"I'm supposed to protect you!" Nyah shouted after with a groan and quickly followed. She ran into the apartment just in time to see Clary whack Simon on the back with the fire extinguisher. "Clary!"

Clary stopped and realized it was Simon when he turned around.

"What the hell?" he exclaimed then waved his hands around, "What happened here?"

"You scared me," Clary replied and started to put out some of the little fires in the kitchen, "And our mom is missing."

Simon wasn't sure he heard right. "What?"

"Someone took her and destroyed the place," Nyah answered then said, "It's a bad time right now, so maybe you should just go home."

"What? No," Clary countered. "He should know what's going on." She led Simon into the other room saying, "This guy is helping us find her but you can't see him and..." she turned the corner and found he wasn't there so she sighed, "Great, now I can't see him either."

He cleared his throat and walked out of the bedroom that happened to be Nyah's, and introduced himself. "Jace Wayland, Demon hunter."

Simon gave him a 'wtf' look before saying, "Simon Lewis, Keymaster. Are you the Gatekeeper?"

Nyah laughed at that then covered her mouth as she cleared her throat.

Jace looked at her for a moment before addressing the Mundane. "I have no idea what you're talking about."

Clary was so confused, "Wait, so you can see him now?"

"Of course I can see him," Simon answered and while they were having that back and forth, Nyah followed Jace into the kitchen.

"What are you looking for?" Nyah asked, leaning against the fridge.

Jace picked up a photograph from the floor. "Who is this?"

"That's our dad," Clary answered. "He died when we were two."

Jace let the picture drop and kept looking around.

Simon pulled the sisters aside, "A moment, please." Once they were all in the living room, he started in on them. "Let me get this straight, your mom goes missing and you two start hanging out with some dye-job wannabe Goth weirdo? Where did you come across this guy?"

"I – I didn't," Clary answered. "He found me. But I think he was looking for Nyah."

Simon didn't care which he was looking for, it was the 'found me' part that hooked him. "Found you? What do you mean he found you?"

Jace walked into the room and handed Nyah the cellphone he found. "You should check this." Turning to Simon, he added in, "And for the record, my hair is naturally blonde."

Nyah smirked a bit at that then took a breath before going through their mom's phone. She read aloud the call log, "Clary, Clary, Nyah...Simon?"

Clary went over to the phone and saw Simon's name listed. "What? She called you?" The sisters looked at him and asked in unison, "Why didn't you pick up?"

"If I knew it was serious, I would have," he replied, really wishing he had answered at the time.

"Well how would you know if you didn't pick it up!" Clary shot back.

"Clar, try and stay calm," Nyah said to her sister gently, but she wasn't hearing it.

"I'm not going to stay calm!" she shouted back. "Our mom is missing, Demons apparently exist, and we're getting help from a guy who is sometimes invisible to come people! How are you so calm right now!"

"Because mom told me to," Nyah answered, and that was the truth. "She told me not to worry and to stay calm. So that's what I have to do."

Jace caught that and something clicked. "Of course." Shadowhunter twins of the same gender just didn't exist, so there had to be another explanation for Nyah and he believed he figured it out.

Nyah looked at him with a 'don't say it' face before noticing the glass bottle in his hand. "Wait, what's that?"

Jace held the bottle out for both girls to get a better look at. "Nothing good."

End Part 1

A/N: Hey, Readers! Thanks to a dare I received, you're getting a Movie version of The Opposite and The Mirror for your reading pleasure. I've never seen the movie before now and didn't really know how many differences there were between it and the TV show. Suffice to say, there are certainly going to be plot differences between the two fics as well. Hope you enjoy it and thanks for reading!