Disclaimer: This is a fan fiction of a fan fiction. Check out the awesome original story, "It wasn't hate, It was love" by Aspire on quotev. I am only writing this because I love Aspire's work so much I had to continue the story past the heart-breaking cliff-hanger that has been keeping me up at night thinking about it. All credit goes to the original artist for creating such a fabulous plot line.
Emma Herondale is Jace Herondale's little sister. Being sixteen she's the youngest at the New York institute and is therefore treated like the coat rack by the door, ignored most of the time until needed for some boring job. Her brother always made sure she never got into any exciting dangerous situations, which, considering she was a shadowhunter, was probably quite some feat.
But Emma was starting to grow tired of Jaces over-protectiveness, she wanted to be more like her role model/mentor/sister, Isabelle. Though unrelated Emma had grown up with Isabelle and Alec, so was just as much their little sister as Jace's. It was Isabelle that truly understood Emma's need to be involved, possibly from being a younger sister herself.
All of Emma's spare time was taken up with her two favourite hobbies; reading and knife fighting. She was still too small to effectively use a sword, or maybe it was just for want of better technique, but her passion in daggers had made them a deadly weapon in her hands. Not just excellent at knife throwing, but with two blades in her hands, she could hold her own against anyone else at the institute, whether they be fighting with seraph blade, stave, whip or sword.
This however did not impress Jace, who, (truthfully,) stated that being able to fight demons was very different to training with other shadowhunters. So even with her skills Emma was restricted to only two hunts a week and required to spend the rest of her time learning boring theory, and training, generally by herself as the others would always be out on missions.
Today was no exception, the four adults (Robert Lightwood was away in Alicante doing what ever he did over there - Emma wasn't sure) where out hunting, leaving behind a list of work for Emma to complete, (mainly reading and Latin.) She had left it a bit late, which was why she was hunched over a table in the library at eleven o'clock at night when she heard the unmistakable sounds of the others returning.
Emma hurriedly scrambled to put her books away; she had not expected them back until the early hours of the morning, so had not thought of there being a possibility of her getting caught for being up so late. There seemed to be a lot of yelling and ordering around that sounded both excited and worried. Fear anchored her in her place as she strained her ears to hear what was being said.
What if somebody had been hurt? She lever let herself think that any of them could get killed during a demon raid, as being a shadowhunter orphan, she knew the high possibility of that happening first hand and could never stomach the idea of losing anyone else she loved. Slowly edging towards the doors to better hear what was being shouted down stairs, Emma silently dreaded what she might overhear. She stopped when the sounds of their voices drew nearer and she could tell they were just in the corridor outside the library.
"...I will not take any chances with him! You'll wait in the library and guard him till we've taken care of Alec!" Maryse's voice sounded as commanding as always but with an anxious tone to it that made it more human.
Emma heard Jace murmur something in reply. If Alec was wounded, which it sounded like he was, it was no surprise that Jace, his parabatai, was none too pleased to be left on guard duty while others sorted out Alec.
Guard duty? Emma's curiosity spiked, maybe a rogue werewolf they'd brought back for questioning? Then the realisation that Jace, her strict, over-protective brother, would be coming through the old, rune-covered, oak doors in front of her and would find her up at this hour, well away from her bedroom and not even out of her training gear, struck her.
This thought had Emma backing away across the room to put a greater distance between her and her soon-to-be-enraged brother. The fact that he would be accompanied by someone dangerous that needed guarding did not bother Emma at that point.
The doors opened and Emma recognised the golden hair of her brother, before he stopped, apparently surprised at seeing her, but quickly changing that to frustration and anger.
"Emma? What the hell do you think your doing here at this hour! Your supposed to be in bed asleep! By the Angel Emma Herondale! Get to your room and don't come out until I tell you to!" Jace was the only true family Emma had and she loved him very much. It always hurt her when he told her off or was disappointed in her. His yelling at her had made her want to cry, but she held her ground and replied, "I'm not ten anymore Jonathan, I can take care of my self now! I was just doing the homework you left me with!"
Jace knew she was angry with him as she never called him 'Jonathan' any other time, but his anxiety was running high, along with his stress levels, and all he could think about doing was getting his sister away from the monster they'd caught.
Emma expected Jace to start shouting back, when a dry laugh sounded from behind him. The passageway wasn't lit, so it was only when the stranger stepped forward that Emma could see him. The witchlight in the library seemed to reflect out of his silver-white hair, dancing off the sharp outlines of his face.
Jonathan Christopher Morgenstern. The part-demon son of the most feared nephilim and deadly enemy, Valentine.
Jonathan's ebony eyes were locked on Emma, not in a predator-after-its-prey look, but with a predator-that-already-has-its'-prey-and-is-wondering-what-to-do-with-it glare. As he took another step into the room, Emma's natural instincts kicked into gear and she had turned 180 degrees and was running towards the door on the opposite side of the room. Reaching it in a heartbeat, she was through and on her way to her room, using every ounce of speed she had.