So, I realized that in my last author note I forgot to mention where Simon was. He and his band are on tour, that's why he's not in the story. =D

Disclaimer: I'm really getting tired of these things. Is there anyone here who is going to sue me if I don't squash my pride this once and point out that Jace and Alec are not mine? No? Sweet. They're mine, then.

Oh, hey, is that Cassandra Clare over there? Whoops. O_o

Note the spelling of 'Clare' above. I was recently informed that that is how you spell it. Apparently, I've been spelling it wrong for the past year or so. No wonder none of her books ever showed up when I typed her name in at the library. -sheepish grin-

ya: Yep, they are! But, don't forget that the boys aren't the only one's celebrating April Fools' Day! =DD

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Jace stood holding the door still as Alec tried to balance a cup of water on top of it. It wasn't as easy as it sounded, seeing as how they were on the outside of the door, which opened inward, and Alec had his fingers through the small crack in the top and was trying to maneuver the cup into position.

"I've got it," he said finally, cautiously letting go of the cup and bringing his hands down.

"Perfect," Jace said. "Because someone's coming."

The boys slipped into a vacant room, and watched as Clary entered her bedroom. Or, rather, pushed open the door to her bedroom, but didn't get much farther than that because a red plastic cup fell from out of nowhere and splashed water all over her.

"Oh my gosh!" Clary yelped, jumping backwards too late. Jace and Alec tried their best to hold in their laughter. Thankfully Clary didn't hear them.

"They're dead," Clary muttered, looking down at herself and pulling her wet shirt away from her body. "They totally deserve it, too. I'd love to see their faces when they find out." Stepping over the puddle on the floor and still muttering to herself, she went into her room and closed the door.

Jace looked at Alec. "Do you know what that was about?"

"No clue. Actually, it was probably some prank they're planning on playing on us."

"Yeah, really?" Jace asked. "I couldn't tell." Alec wasn't bothered by the sarcasm, he just smiled at his friend.

"Isabelle's room now," he said.

"Isn't she in there?"

"Nope. I don't know where she is. I couldn't find her at all."

"We'd better be quick, then," Jace said, moving towards Izzy's room. Once in there they headed toward the dress spread out on the bed.

"I'm guessing this is the one she's wearing tonight to that concert," Jace said as they inspected it.

"Probably," Alec agreed. "So, are we sewing it together?"

"Yeah. Preferably somewhere in the middle, where she won't notice until she puts it on."

"Do you know how to sew?"

"Nope. We'll just have to learn as we-" he broke off suddenly, listening intently. "Got to go," he said quickly. "You do that, put it back when you're done." With that Jace rushed out of the room.

He was just getting back to his own bedroom when he heard Clary yelling for him. He quickly slipped in and closed the door.

Clary barged in to find him sprawled out on his bed, inspecting a blade that he held up above him. The door banged into the wall as he lazily looked at her.

"Why, hello, Clary. Thanks for knocking. Next time please do it on the door instead of letting the door do it on the wall."

She stomped over to him. "Jace, where is my sketchbook? You know you're not allowed to touch it."

He just grinned at her, her face flushed and her eyes sparkling with anger. He put the blade away and slowly sat up, crossing his arms. "Somewhere in the world, I suppose."

"Where in the world?"

"In New York City."

"Jace! Where in New York City?"

"In the Institute."

"Jace! Exactly where is my sketchbook!? Give it to me right now or-"

She stopped as he pulled it out from under his pillow.

"Or what?" he asked.

She sighed, her anger seeming to disappear suddenly. "Give it, Jace."

He raised his eyebrows at her. "Wow, what happened? One second you were about to bite my head off, and the next"

She put her hands on her hips and glared at him.

"Okay, and now you're mad again." He cocked his head to the side and inspected her, as if trying to find the source of her mood swings.

She started blushing again. "Jace, would you please cut this out and give me my-"

At that moment Isabelle joined them. "Come on, Clary, we need to get ready for that concert. What are you doing?"

"Jace stole my sketchbook and won't give it back. Oh, and by the way, I'm not coming until he does."

Glaring at Jace, Isabelle walked over and pulled the sketchbook from his hands. As she was handing it to Clary, he jumped up and grabbed it from her.

"Excuse me, but I know how to give it to her, thank you." He turned to Clary and handed the sketchbook back. She took it, and then, to his startlement, she threw her arms around him.

"Thanks Jace," she said, and then ran out of the room, followed by Isabelle, who paused a moment to grin at Jace before leaving.

What was that about? Jace wondered, thinking about Clary's sudden hug and Isabelle's grin. Shrugging it off, he realized what Isabelle had said about getting ready for the concert. He hurried out to find Alec.

Alec wasn't in his room, or the kitchen, or anywhere else Jace checked. Finally, he called him. Alec picked up after two rings.

"Where the hell are you?" Jace asked.

"Shhhh!" Alec hissed back at him through the phone. "Outside Isabelle's room. What do you want?"

"They're getting ready for the concert now."

"I know that. Do you think I normally choose to spend my time eavesdropping outside my sister's door? Now, get over here! Quick." He hung up.

Jace almost missed out on all the fun. He had only been outside of Isabelle's door for half a minute before he heard her yelling. He and Alec looked at each other and burst out laughing.

Isabelle came flying out of her room. "Where the hell is my make-up?" she hissed at them. They had been planning on baiting her along to see how mad she would get, but Izzy had come out of her room well armed. Alec took one look at the whip in her hands and said, "I'll go get it."

Jace turned to follow him, but Isabelle's whip snaked out in his path. "You stay here. You're a hostage. Did you hear that Alec?" she asked, raising her voice. "You had better bring that make-up back, and quick!" There was no answer. Jace hoped that Alec had heard.

He looked past Isabelle, who was standing in her doorway fuming, and saw Clary. She looked like she was trying not to laugh, though whether at him or Isabelle, he didn't know. He winked at her anyway. She just grinned harder.

Alec did come back - with Isabelle's make-up, too. She took it from him wordlessly and disappeared into her room, closing the door behind her. Alec came and leaned up against the wall next to Jace.

"As soon as we hear her yelling again, we should probably run."

"Thanks for the suggestion," Jace said dryly. "I was planning on doing just that."

It didn't take too long for Isabelle to try to put on her dress and find that it had been sewn together. Alec and Jace looked at each other again as soon as they heard the first muffled shout, and by the time Clary poked her head out the door, there was no one in sight.

*~*~*~*

Jace and Alec became scarce until they were sure that the girls had left for the concert. Not long after they had gone, Alec's phone vibrated. He looked at the caller ID and immediately flipped his phone open.

"Hello."

Jace, realizing who it was, wandered over to the other side of the room to let Alec speak in peace. He didn't really want to hear that conversation, anyway.

Alec came up to him a few minutes later, frowning.

"What's wrong?"

"That was Magnus."

"That's what was wrong?"

"No. He said he wants to show us something, and he asked us to go over."

"What does he want to show us?"

"I don't know," Alec answered. "Do you have any idea what a youtube is?"