A/N: Ok, I couldn't wait! :D This is my Death Note OC. I hope you like her! BTW, this occurs before the whole Kira investigation. And the BB murder case. It just happens before everything. Also, don't ask me why both of the names of my OCs so far start with 'I' and are plants. I don't know. -.-

L was staring off into space, thinking about the current case he was working on while absentmindedly popping sugar cubes in his mouth. Watari quietly entered the room, closing the door behind him. "How goes the case?" he asked when L looked up at him.
"It's crawling, but crawling relatively fast enough."

"Do you have time to take a break?"

"I could, but I'd rather not."

"Well, you see, she's here."

L glanced up quickly, his eyes boring into Watari. "Let her in, of course."

A minute later, a young girl, about the age of 8, rushed though the door. She had black hair, pale skin, and deep brown eyes. "Brother!" She ran over to hug him.
L gave a small smile. "Well hello, Iris, how are you doing today?"

She tilted her head thoughtfully. "I am functioning quite well, but…" she broke off and slowly shook her head.

L's smile disappeared. "Not even 'how are you?' Not even for your brother?"

Iris just looked up at him sadly. Watari smiled softly. "Still, she got six words out, even after her greeting. It's improving."

"Not enough. Most children speak too much. Why can't she speak at all?"

Watari's eyes softened. "You know why. Her mind is unstable. It possesses a large amount of knowledge, like you, but it is unable to express that."

Iris frowned, her brow furrowed. "I'm right here! Quit talking about me!" she screamed… or she thought she did. With no change in either of the men's expressions, she assumed she hadn't spoken after all. Why is this so hard? Why do I think but then not speak? What is wrong with me?

Iris, however, was used to this. Thought she was frustrated, she let it go and hopped into L's lap.

This made him chuckle. "You want to hear about my case, then?"

She nodded.
"Well, you see, people are dying in their beds. They die from some sort of hole that has been burnt through their head."

Iris squealed. "Rhyme!" (A/N: Because 8-year-olds would totally care about the rhyme and not the creepiness factor… that shows that she isn't really a normal child)

L smirked. "You're right, I did rhyme! Anyway, the only problem is, all of the doors are locked, the windows are shut, and nothing is broken. I just can't seem to figure out how they're doing it. It's also far too easy to figure out who is the murderer and why they are killing people, so that is hard to find out, too."

Iris looked bemused. Watari stepped in. "So you don't think it is our current suspect?"

L shook his head. "All the people who are dying are either people who are… not on friendly terms… with a certain man, or who he owes money to. It was so easy to come to this conclusion, though, that I wonder if someone isn't setting him up. Although, all of his enemies are dying, so who would want to set him up?"

"Rate of death?" Iris asked, slightly creepily.

"One a week."

"Lots of enemies."

L laughed at this. "I'm afraid that's our problem. He has many enemies, but it isn't infinite. When the list runs out, will the murderer start killing random, innocent people? Or will he stop altogether? I'm afraid this has created a bit of a timer for me."

When Iris heard this, she promptly jumped off L's lap and walked over to the door. "Later, brother."

L smiled sadly. "Iris, you weren't wasting my time. You never could."

She just shook her head, repeated herself, and meandered back to the room that was always hers whenever she came here on a holiday, to get away from the mental doctors at Wammy's House. If they could fix her speaking problem, she could work with her brother, L, on his cases, or even take his place. That's why they were there.

She didn't want that, though. She wanted to spend time with her brother, the only for of parent that she had. The only friends she had. You know, besides Watari. He was pretty cool.

Iris closed her eyes and reviewed her day so far. It was a good day. She saw her brother for the first time in three months. She made a few jokes. Yes, so far, it was a good day. She ended her usual review of her day (something her mental doctors advised) by counting the number of times she smiled. Once, when she first saw her brother. Other than that, she was stone-faced. Suddenly the day didn't seem so magnificent.

I really need to express myself more. But I can't! Ugg. Stupid whatever-this-is.

To occupy herself while L mulled over the case, she thought about it, too. Of course, in her small room, she had about a dozen bookshelves, filled to the brim with books she hadn't read yet, but the case intrigued her. How on Earth did the murderer kill his victims? Who was murdering them, and why? These questions had to be answered in order to solve the case.

She knew L didn't need her help, but she decided to satisfy her own curiosity by helping anyway. Even if they didn't know she was helping.

Iris strode over to her expensive laptop, opened it, and logged into her account. She then "accessed" all the information pertaining to the case by typing in a quick code.

This code then gave her the username and password so she could get to the information normally. She used this to set up more defenses that most people would be unaware of and that wouldn't hinder L and Watari in any way. It just made it harder for hackers, such as herself, to access it.

After a few minutes of this, she turned to the information and began thinking. Smirking, she wondered what her doctors would do if they knew what she just did. Probably cut off all of her access to computers. Luckily, they would never find out, as she was taught by the best: Matt.

Matt stared at his computer screen incredulously from his bed. L has a sister? What? Led by his curiosity, he typed in a few more codes and saw her predicament. Iris, huh… I actually feel rather bad for her. A genius, but can't really talk… must be awful.

Mello suddenly walked in. Matt had the impulse to shut his laptop immediately, but that would just arouse suspicion. After all, he was on his computer constantly. A few clicks and taps later, and Matt was playing a game, like normal.

"What're doing?" Mello asked in a long, drawling voice.

"Playing a game. What else?"

"Oh, I just thought you might be hacking into the system to see what our test scores for the exams were."

Matt's heart skipped a beat. This was, in fact, what he had been doing, but he didn't want to have to tell Mello that he cam in second… again. (Or rather, he came in third, but Iris didn't count in the placement of the children.) No one wants to deal with Matt's roommate when he's angry, even his best (and only) friend. Otherwise, he'd probably tell Mello about Iris. You know, probably. Mello wouldn't be too thrilled that there was another person smarter than him.

"No."

"Well? Can you?"

Matt rolled his eyes, swiftly coming up with a lie. "They added more security. I could technically, but they would know I was there. And probably take away my computer, too."

"Oh. That sucks."

"Yeah." Matt tried to think of an excuse to go see Iris – because he was insanely curious at this point – but since he never left his room, nothing would sound convincing. He sighed and decided to go at night, when Mello wouldn't know he left.

Matt glared at the lock, as if that would make it melt. He had snuck out of his room, creeped down countless hallways, got lost twice, only to be stopped by a lock? SERIOUSLY? He could get through any software block, but a physical one? No way. Not when it's this complicated.
Matt groaned, hitting his head against the door. "Yes?" a girl's voice came from inside. Matt froze, realizing too late that his head made a knocking sound. "I thought we already…" she trailed off, as if she couldn't talk anymore. Matt, having read about her, knew this to be true. He hesitated, and then asked quietly if he could come in.

"You're not… doctor?"

"No. I'm a student here. You got a higher score than Near on our exams, so I was curious as to who you are?"

"How do you know?"

"About the exams?" Matt grinned. "Don't tell anyone, but I hacked."

There was a bit of laughing beyond the door. "Bad system, if a student could."

Matt made his voice sound mock offended. "How rude! I can hack into anything!"

The door opened, and Iris shocked Matt by how much she looked like L, minus the eyes. Her eyes were deep brown, filled with emotion, most of it sad. Right now though, they were happy and slightly demanding (she was about 5 after all). "Teach."

"Teach? You how to hack? Why?"

Iris, who was younger than Matt had expected, shrugged.

He paused again. "I don't have my computer with me… how much do you know about hacking?"

Iris tried to speak, but then just shook her head. Matt assumed she could answer questions well. "You don't know anything?"

She nodded.

"Ok. I'd recommend started out with signing up for coding class. That will help you learn the basics. I'll teach you from there. Is that ok?"

Iris beamed and nodded.

"I'll see you soon, then!"