Sweet Little Serena (Original)

Prologue

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"A mundane shouldn't even be here," Alec said as he followed his parabatai into the infirmary where Izzy sat at the bedside of the redhead mundane that had foiled their mission to find out who was selling mundane blood.

"Where is 'here' exactly?" the girl asked.

"She's not a mundane, Alec," Jace said.

"How do you know that?" his parabatai answered back.

"Because the seraph blade lit up when she touched it. Look, Isabelle, can you..." Jace began and the girl complied as she moved from the bed so Jace could sit down.

"I'm Jace Wayland."

"I'm, uh –"

"Clary Fray. We know who you are," Jace finished.

"Am I the only one who finds this unusual?" Alec asked to his siblings.

"You find everything unusual, Alec," Jace replied, a little annoyed.

"I have to report this to the Clave."

"You know what? Dial it down a notch," Jace retorted.

"My brother doesn't have a dial," Izzy piped up from where she lounged on an empty bed. "I love you Alec, but you have a switch that's always on, and only S can seem to flip it."

"I love you too," Alec smiled sarcastically at her. "But this is –"

"Hey, you know what? Give me a minute," Jace asked, cutting off Alec, who didn't move nor respond.

"Here's a word you never hear me say. Please?"

"What is with you? You do realise that she's never going to let you head up a mission again when she gets home, right?"

"Walk with me, big brother," Izzy said as she stood, just as a burned piece of paper flew into Jace's hand.

"Speak of the devil," Alec smirked and Jace just sighed as he handed over the fire message.

"Write her back for me, please. And don't tell her about Clary just yet. It can wait until she's done with her mission," Jace asked, and Izzy took the paper from him.

"Good luck," Izzy hummed as she pecked Jace's temple and walked out of the room on her brother's arm, leaving Jace and Clary alone.

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"Is this the least revealing thing you have?" Clary asked as she stood in front of the full-length mirror in Izzy's room.

"What?" Izzy chuckled. "All the naughty bits are covered. A little too much in my opinion."

"Where's Simon?" Clary asked as she crossed her hands over her chest.

"Who?" Izzy asked before she laughed as she saw the look on Clary's face. "Kidding. He's in good hands with the boys.

"So, um, you, Alec and Jace are...what, like family?" Clary questioned as Izzy reclined on her bed with a teasing smile on her face.

"Translation, you wanna know if Jace and I are a thing."

"Why would I care?" she scoffed.

"Because you do. Don't worry. In every way, he's like my brother. Our parents took Jace in when he was 10. We trained together. Learned to fight side by side."

"A few days ago all I had to worry about was getting into art school. And now..."

"Is this the part where I give you the pep talk about harnessing your inner Shadowhunter and accepting your true destiny?" Izzy smirked.