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Heres the next chapter. Hope you enjoy! Thanks for all the reviews. I really appriciate it. and another special thanks to Luvvin Cody linley for editing this chapter for me. Please review!!!

Chapter 11

"Interesting, very interesting," they heard a small voice say as one of the stalls opened. The two best friends stared wide-eyed at the person standing right in front of them.

"Lizzie, what are you doing here?" Casey asked shocked to see her little sister at her school.

Lizzie hadn't thought of that. Of course she should have but for some unknown reason she didn't. She just had to figure out an excuse. And fast. "I…umm…well…" she stuttered then decided to just blame it all on Edwin. "Edwin put me up to it!" she finally said pretty fast but Casey and Emily could still understand her.

"Umm, why?" Casey asked her little sister.

"He wanted me to spy on you," she explained. Hopefully should wouldn't ask anymore questions.

"And why is that?"

"We saw you and Derek making out."

Casey's mouth dropped open. She could swear that no one was there with them. Of course she wasn't really paying attention but still. The babysitter specifically said that they were in bed. How could of they had left without the babysitter knowing. "That's impossible," she finally said. "You guys were in bed. The babysitter said so."

"You know how clueless Marissa can be," Lizzie pointed out and Casey nodded. She knew what she was talking about. "As long as she's watching TV, she won't notice anything."

"Okay I can definitely see that but where were you guys?"

"We were looking out from behind the curtain on the far right side of the door." Lizzie explained.

"Who's idea was this?" Casey asked again.

"Wasn't it made pretty clear that it was Edwin's idea?" she said as if it was obvious. "He's always in charge of our spying adventures."

"Okay then. I'll have a little talk with him when we get home." She sighed. "And Lizzie never do this again." Just then, she remembered something, "And that reminds me, how did you get here anyways?"

"I walked," she said shrugging.

"Lizzie," Casey cried. "You know you aren't aloud to walk on that road! You could of got hurt."

"Don't worry about it, Casey. Look I'm fine," she told her. "I'm fine aren't I?"

"Yeah but I'm going to Have to call mom and George so they can pick you up. I can't take you home since I have class," Casey explained.

"Fine," she pouted.

"Oh and another thing, don't tell anyone about me and Derek okay!" Lizzie nodded and they headed out down the hall towards the attendance office so they could call Mom and George so one of them could pick Lizzie off and drop her off at school. Emily waved good bye and headed towards her next class.

XXXX

It was lunch time the same day. Derek was having lunch with his friends when Casey took him away to a secluded corner of the room so no one would hear them.

Once they stopped, Derek asked, "What do you want now Casey?"

"Lizzie and Edwin know," Casey told him.

"Know what?" Derek asked confused.

"You know, our little arrangement," she explained and Derek nodded in understanding. "Lizzie came to school today and me and Em caught her spying in the girls restroom."

"How did they find out?" he asked her.

"They were watching by the window apparently."

"But didn't the babysitter say that they were in bed?"

"Apparently they weren't," she explained. "They probably snuck out when Marissa was watching TV or something."

"Why would they even want to sneak out in the first place?"

"How should I know? I don't know why they do things!" she said in a loud whisper.

"Wow is the Casey McDonald actually admitting she doesn't know everything? I never thought I'd see the day!"

She scowled at him. "You know what, you can be so obnoxious sometimes."

"But you love me anyways!" he said smirking.

"Umm, no I don't," she countered trying to hide the smile which was forming on her lips.

"Yes you do. Come on just admit it."

"We should go," she said trying to change the subject. However when she saw him put on a fake frown she smiled sweetly up at him to show him she was just joking. "Don't want to make them suspicious."

Derek nodded then they headed off towards there friends.

XXXX

Right when they got home, both Derek and Casey went up to Lizzie and Edwin's room to have a little chat. When they got up there, they knocked on the door. Fortunately they were already there.

"Derek. Casey," Edwin said once he opened the door. Lizzie was on the bed staring up at them. "What a pleasant surprise." He motioned them to go inside and they did. They sat down right next to Lizzie. "So what brings you guys up to our humble abode?"

"We need to talk to you about what you saw the other night." Derek said right away. "Why were you guys thinking spying on us like that?" he said angrily.

"We just wanted to see who it was," Edwin said innocently .

"Oh really? When was the last time you ever did something like that?" he asked.

"We always do," Lizzie chimed in shrugging her shoulders.

"Then why do you never do that when we're babysitting?" Casey asked her sister.

"Because we always have other things to do. Marissa was already watching TV, and well, you know how boring the house can get." Lizzie explained. "It was the only fun thing we could do."

"Whatever," Derek said impatiently. "Now lets just cut to the chase; what you saw the other night isn't something we want spread around so keep quiet okay. And if you so happen to open your mouth," he looked at both Edwin and Lizzie, "you will regret it. You got me?"

Edwin and lizzie both nodded there heads and Derek smiled. "Good to hear. Now go back to what ever you to were doing before." Casey and Derek pushed themselves off the bed and walked out the door leaving the two younger siblings alone in their room