Shout-out to:Lilietje99, 4everallways, Guest, and Anonymous for reviewing the last chapter! Thank you!

Isabelle had spent the next few days getting ready to go to the Adamant Citadel. At first, Maryse had been against her daughter becoming an Iron Sister, but after Jace and Clary had explained to Maryse why Isabelle needed to be one, she completely understood.

Isabelle walked downstairs to the library. She would've spent the time packing, but since she was becoming an Iron Sister, she didn't need to bring any clothes. Walking in, she saw someone that she hadn't seen in forever: her brother.
"Well, well, look who finally made an appearance. Where have you been these last couple days?", she asked Alec.
"I've been a little busy, Isabelle." He looked down at his phone. "Could you do me a favor and get my phone charger from my room?"
"Sure. Whatever."

Clary and Jace walked up the stairs to Simon and Jordan's apartment. Jordan said that he could maybe help Jace control his Heavenly Fire so, here they were. Simon had answered the door and led them to the couch. Jordan came in shortly and he sat in front of Jace on a stool from the kitchen.
"So, tell me Jace: what do you like to do?", Jordan asked.
"I like to kill things." Typical Jace, Clary thought.
"No killing," Jordan said. "We're trying to make you feel peaceful, so you don't go up in flames. Blood, killing, war, those are all non-peaceful things. Isn't there anything else you like? Rainforests? Chirping birds?"
"Weapons," said Jace. "I like weapons."
"I'm starting to think we have a problematic issue of personal philosophy here."
Jace leaned forward, his palms flat on his legs. "I'm a warrior," he said. "I was brought up as a warrior. I didn't have toys, I had weapons. I slept with a wooden sword until I was five. My first books were medieval demonologies with illuminated pages. The first songs I learned were chants to banish demons. I know what brings me peace, and it isn't sandy beaches or chirping birds in rainforests. I want a weapon in my hand and a strategy to win."
Jordan looked at him levelly. "So you're saying that what brings you peace... is war."
"Now you get it."
"Okay, Jace? Can I talk to you in private?", Clary asked.
"Sure." They got up and headed into Simon's room, making sure to close the door behind them.

Isabelle walked over to Alec's room and opened the door. Looking inside, she saw the last person she expected to see: Sebastian. He smiled at her. But instead of looking away with disgust, she smiled back. She hadn't wanted to, but she did anyways. She looked away and thought for a little while. She began wondering why she ever hated him. In fact, he was just like her. He understood her. And, she found him a bit attractive. Maybe even more than a bit. She turned to look at Sebastian, lying on the bed. He was shirtless, and even in the dim light the old whip weals across his back were visible. She had always been fascinated by Shadowhunters but had never thought she would find one whose personality she could stand for more than five minutes, until Sebastian.
"Hello, Isabelle. How are you feeling today?", he asked her. Wow, she thought. He really did care.
"I'm great now that you're here."
"What? No hello hug?"
She smiled. Typical Sebastian. He always knew how to put a smile on her face. She reached behind her and closed the door. Then,she walked over to him and perched on the side of the bed. He grabbed her and pulled her into a hug. They were so close now. If she just moved a bit more, they would be closer than ever. So, she did just that.

He seemed a bit surprised at first, but he soon gave into her passion. He rolled her around so that she lay on the bed and he hovered over her. She immediately pulled him back down. She ran her hands through his pale blond hair as he put his hand on the hem of her tank top. He began pulling it up as she realized that no boy had actually ever seen her topless. That changed at this moment. At least he hadn't taken it off, so she could easily pull it back down if she wanted to. But that was the thing, she didn't want to. She didn't want to stop this. Not now, not ever.

Suddenly, she heard the door to the room open. She hastily pulled away from Sebastian, even though she really didn't want to. She looked up to see the person that had interrupted and that she would kill later. It was tugged her tank top back down and glared at her brother. "You don't knock now?"
"It's my bedroom!" Alec spluttered.

"What did you want to talk about Clary?", Jace asked once they were alone.
"Look, I know that peace isn't really your thing."
"And?"
"According to Jordan, you have to be calm for this to work. So, I was thinking that you don't have to think of birds or the forest."
"What are you suggesting I think of? Hansel and Gretel?"
"No. I'm suggesting that maybe you could think of me?"
"That, is actually not a bad idea."

They would've continued with the session, but Jordan had plans to meet Maia and Simon was meeting his sister. Instead, Jace just retreated back to the Institute and Clary went back home.

Alec proceeded to take (or rather drag) Isabelle out of the room. He had stayed behind to make sure Sebastian left. Which, he did. As soon as Sebastian was gone, Alec began scolding Isabelle.
"Okay, Izzy. WHAT THE HELL WAS THAT?!"
"Alec, we're in a church. Do not say hell."
"STOP AVOIDING THE QUESTION! JUST TELL ME WHY ON EARTH YOU WERE MAKING OUT WITH SEBASTIAN!"
"Calm down, Alec. Why are you so angry at me?"
"Because you made out with Sebastian Morgenstern!"
"I WHAT?! I did NOT nor will I EVER make out with that creep."
"You just did."
"What?! Wait a minute." It all came rushing back to her. She had been nice to Sebastian. She had hugged Sebastian. She had kissed Sebastian. "EW! Excuse me Alec while I go SANITIZE MY MOUTH!"
"Why are you complaining? According to Sebastian, you kissed him."
"Why would I EVER do that?"
"Isabelle, I think that maybe Sebastian can do more than we thought. He isn't just faster and stronger. I think that he can compel us in a way."
"So what you're saying is that he brainwashed me?"
"I think so."

When Jace arrived back at the Institute, Alec explained everything that had happened that afternoon.
"Ugh," Jace said when Alec was finished, "Izzy, you kissed Sebastian? Shouldn't you sanitizing and maybe even boiling your lips right now?"
"I should be."

Isabelle had decided that she needed to leave the Institute sooner than she thought. So, she was leaving soon and going to the Adamant Citadel. When? Tomorrow.

I know that the Sebastian/Izzy scene was NOT pleasant to read (it wasn't pleasant to write either) but it had to be done. So, how's the trip going to go? Stay tuned...