A Heart as Light as Wood:
It was a warm day in June. A certain rune marked whip slinger was off to meet another guy. Not just any guy. Oh no, she was meeting Simon, her geeky, anime and star wars loving vampire boyfriend, at Taki's. She was wearing a pink floral dress that showed her runes on her arms and with a pair of black riding boots. Her hair was in a long fishtail braid that went halfway down her back. She turned the corner and looked at her reflection in the restaurant's window. It was only 11:50 and Simon told her to meet him at exactly noon. She found a bench a few shops down and waited. A few minutes later she saw Simon walk up holding hands with Maia. She asked why he was going to Taki's and he told her he was meeting Clary and Jace there. After he kissed her goodbye her he checked his watch… 11:56. He walked in and sat at their normal seats. Isabelle turned, put a glamour around herself, and began walking home. When she got back to the Institute she heard Alec, Magnus, Jace, and Clary laughing in her least favorite room; the kitchen.
"Hey." She said sitting down. They returned her hello and went back to their conversation about weapons. Isabelle remained silent. They soon moved on to their dinner plans and who they'd invite that night for dinner.
"… and you can invite Simon, Izzy." Alec finally spoke to her for the first time in over an hour.
"Uh…yeah maybe." Her eyes filled with tears so she stood up and left the table and ran to her room. When she got there she sobbed into her pillow. After a little bit she heard a soft knock on her door. In walked none other than Alec and Jace. Jace was shuffling a cookie and a mango in his hands. He also brought her a cookie while Alec brought her a glass of cold water. They saw their normally emotionless little sister's face and looked at each other in worry.
"Do you want to tell us what the hell is going on?" Jace asked after a little bit of silence.
"Yeah because you have been acting like yourself, Iz. First you go on a date and you come back literally 10 minutes later, then you are completely silent, and then you cry at the mentioning of Simon. Talk to us Izzy, tell us what's wrong." Alec said gently.
"Simon. That's what's going on. I caught him cheating on me with that bitch Maia." She responded while she fiddled around with her necklace.
"That bastard." Jace said a bit too loudly. Alec gave him a look while they hugged her and Jace nodded. Stupid silent parabatai silent language.
When they opened up the door Magnus and Clary stumbled forward from their eavesdropping point with their ears pinned to the door.
"Aww Izzy is this the first time you've had a broken heart? What you need is a girl and a gay guy." Magnus said while Clary played with her hair.
Meanwhile Jace and Alec walked to the weapon room and grabbed some daggers and a bow and a quiver full of arrows.
"Let's roll." Jace confidently stated. As they walked the route to Taki's they caught up with the vampire. Jace grabbed him and held him in a half-nelson. If only they noticed their 2 followers.
Isabelle knew Clary and Magnus wouldn't let her leave the Institute so she waited until Magnus got hungry and Clary went to the bathroom before she snuck down to Maxes old first story bedroom and grabbed her whip from her hiding place. Then she hopped out his window.
She snuck around the corner of the building. She knew that Jace and Alec would be close. She went into an ally way and began her journey to Taki's. She heard something behind her and she froze. She slowly turned to be greeted by a ragnor demon. She was fast with her whip but the demon had the element of surprise working with it and overcame the teenage girl.
Jace was walking in front of Alec who was dragging Simon by his collar. Jace had a gut feeling that something was wrong. He heard a low hum and looked down.
"Um… ALEC!" Jace's voice quavered. Alec saw it too. "Is that?"
"Yep that is Izzy's necklace. She was wearing it when we left."