A/N: Coming soon will be a Shadowhunters Christmas.
2007/2008 continued
As the weeks went by Agatha, Alec, Jace and Isabelle became in-separable. Agatha could see that Alec loved her little brother almost as much as what she did, possibly even more. Alec could say the same about Isabelle and Agatha, his little sister looked up to the older girl.
"Alec, can you promise me something?" Agatha asked as they stood in the kitchen eating their breakfast one morning.
"Promise you what?" Alec replied, taking a bite of his cereal as he looked at the older girl.
"That you'll always be there for me?" Agatha told him, as she had some of her own breakfast. Alec let out a laugh and looked back at his breakfast. "I'm serious, Alec," Agatha sighed she had to tell him something else and she didn't want to unless she knew that he would be there for her.
"Of course, Aggie anything," Alec smiled, now he was curious as to why his best-friend wanted to know something that they would always be.
"Alec, not now...but soon I feel like I'm going to have to go away," Agatha told him, she was still getting a hang of the magical side of her life. The Nephilim side she could handle it was the uncertain that she couldn't work out.
"You can't, Aggie. I've known you since I was two years old, what will happen if you don't go?" Alec questioned, as they both finished off their breakfast and walked from the kitchen to see where their siblings were.
"To be honest with you, I really don't know. Did I ever tell you where I went that first day that we met when I disappeared?" Agatha questioned, she hadn't even told Jace about where she went – that could have been because he hadn't been born then.
"No, where did you go?" Alec replied, as they stopped at the library – they both knew that Jace and Isabelle wouldn't be inside.
Agatha thought for a moment, before pulling Alec into the library and retreating up the stairs to the highest part of the library. Agatha grinned and whispered in Alec's ear before her fingers sparked.
"There, that's where I went," Agatha pointed, a small window had opened into Magnus Bane's New York apartment. "He's my big brother Alec," she paused looking at Alec as she spoke. "You can't tell Jace, not yet,"
"What about my mother and father?" Alec said upon seeing Magnus standing on the other-side of the window and looking back at Agatha and Alec.
"Aggie, you shouldn't be doing magic in the institute you know that," Magnus said and quickly closed the window from his side.
"I think your mother knows," Agatha answered, truthfully she thought that Maryse had always known there was something different about Agatha. "Come outside with me?"
"What for?" Alec questioned, they had only just gotten into the library. "What about the greenhouse?"
"Greenhouse will do," she grinned, so long as it was dark when they went. "Tonight, after everyone's in bed,"
Alec and Agatha sat talking in the library when they should have been studying. Maryse wanted her children to know all that they could. After a couple of minutes Jace and Isabelle had joined their siblings wanting to know what was going on. Agatha pulled Jace down on one side of her and Isabelle on the other, Alec had been sitting opposite her.
"I think I have to go away soon, I don't know when. It's just this feeling that I have," Agatha said quietly as they sat in a circle, she didn't know when it would happen.
"I don't like your feelings," Jace mumbled, he had never liked the 'feelings' that his sister said that she got.
"Jace, you're not the only one that doesn't like them," Agatha took her younger brothers hand tightly in hers. "Should I show them what I was showing you?"
"Do it," it was one thing that Jace liked about his sister even after he found out why she could do it.
"Wait, how does he know?" Alec questioned, looking at the younger of the two Waylands.
"He's my baby brother, Alec. He's known since the day I told you I had a baby brother," Agatha told him, and then looked at Isabelle, she couldn't remember if the younger Lightwood knew what she was. 'But soon he won't remember,'
"Meet Aggie and I in the greenhouse after everyone's in bed," Alec grinned before they all made their way from the library to the kitchen to find food.
Agatha and Alec made their way up to the Greenhouse after everyone was asleep, making sure that they had used stealth runes that they had learned. The pair of them waited in the green house for Isabelle and Jace to meet them, Agatha not knowing if she would ever be able to show the full extent of her powers. As soon as Isabelle and Jace had joined them they made sure that they went to the highest point of the Greenhouse.
"This is how you'll always know I'm around," Agatha told them, before sending a purple light up into the sky like Magnus had showed her. "Your mother is never really going to accept me, your father yes, but mother not so much," Agatha told them still allowing the purple light to light up the sky of the greenhouse.
"Aggie, promise me you'll never be far," Isabelle said looking to Agatha and then between Jace and Alec at the same time.
"I promise," Agatha smiled at her before she managed to make the light fade into nothing-ness. "If you promise me that you will forever look out for one another,"
Alec, Jace and Isabelle all nodded, they would do what their sister asked. They couldn't not do it, they trusted her and they had grown to trust one another. Alec needed to know that Agatha would be in safe hands if she ever did leave the New York Institute. They had been best-friends for as long as he could remember and he wanted it to stay that way.