Disclaimer: I don't own any of the GA characters, but I do own Brianna, Ivy, Scott, and new Lydia!

A/N: I'm glad ya'll loved the last chapter. Hopefully there'll be some answers in this chapter. I have so many ideas running around in my headthat I don't know what my fingers will type out. Some MerDer, some Addek in this one. Not much, but significant.

Chapter 6: You Want the Truth?

Addison whirled around and looked directly at the interns. "Don't even try," she snapped, and she was gone in a rush of blue and red.

Later, the interns were in the locker room getting ready to go to Joe's. All except Meredith, but she was going to come out of last-minute surgery any second.

"And so she slapped Satan?" George asked, aghast.

"No. Almost. The she-shepherd grabbed her hand and threw it back at her," responded Izzie.

"Holy crap," muttered George.

"If they were going to have a catfight, I'd put my money on Satan. She looks like the kind of person who could do some kick-$$ itch slapping," said Alex.

They all looked at him. "Hey, I was just saying what everyone already knew."

"You didn't even see Lydia!" protested Izzie.

"Do you honestly think some salon mother would be able to take down Addison Shepherd? Please."

"Forget about the slapping. Seriously, is that all you pervs think about?" Christina quickly looked in both directions before speaking again. No one was there or listening.

"Put the puzzle pieces together. Addison and Lydia know each other. Lydia used 'Montgomery,' not 'Shepherd.' Addison called that woman 'Lydi'. They've known each other longer than she's been married. That's like 15 years. Brianna is the spitting image of Addison. They look alike, they act almost alike. And this Lydia person is pissed. We're missing an obvious conclusion here. We all know it. We should just say it."

"Satan can't have a daughter. That's just...wrong," said Alex, horrified.

"Wronger things have happened," said George.

There was a long silence.

"I'm not even gonna touch that one," Alex replied.

"Good job, Grey. Thank you for coming in on the last minute. Didn't know if I'd need a hand, but I did. I'm glad you were here," said Bailey, washing her hands.

"Umhm..." Meredith said distractedly, looking around outside the hallway window.

"Somewhere you need to be, Grey?" asked Bailey in a very Nazi-esque way.

"No...yes...I'm sorry Dr. Bailey. I'm grateful. Really. Thank you..."

"Go to him," sighed Bailey, drying her hands.

"But...I..."

"Go, Grey."

"It's not becau-"

It's fine. I don't care. If it's something worth hearing about I'll find it out. Now go before I change my mind."

Meredith nodded and ran out of the room.

"Dr. Shepherd? Dr. Shepherd!"

Derek held the door of the elevator.

"To whom do I owe this honor?" he asked, very McDreamily.

Meredith suddenly felt very fluttery, but forced herself to ignore it.

"I need to tell you something."

Derek's face quickly changed to a mixture of dread and expectation.

"No! It's nothing like that. It's just..." And Meredith launched into a full explanation of what had happened between Addison and Lydia.

When she was finished, she watched for his reaction. Confusion. Then...there it was. A spark of realization. But it was gone so quickly that Meredith wondered if she has imagined it.

"Lydia...I know lots of Lydias, but not a Lydia Davis. She sounds familiar, but I can't remember."

"Could you find out, please?"

"Who could refuse a look like that?"

"Shut up." The fluttering was getting stronger. A wave of heat rushed over Meredith, and it was becoming harder to breathe.

"I'll try. I really will."

He stared at her. Oh crap, here it comes again, Meredith thought. The look. The moment.

Ding The elevator doors opened.

"Dr. Shepherd."

"Dr. Grey."

"Good Lord, Mer! where've you been?" asked Christina. The group of interns walked out the doors of Seattle Grace.

"Derek's helping," she said. "Come on, I need my tequila."

What is going on? thought Brianna. It hadn't been until they got to the car that Brianna's mom had let go of her. She'd never seen her mother that angry before. She didn't know what had happened between her mother and Addison or even between herself and Addison, but she was going to find out.

"So Brianna's Addison's daughter," stated Meredith. "It sounds so wrong. For starters, I really like Brianna."

"You'd probably like Satan too, if she wasn't McDreamy's wife," noted Alex.

"It's like the true Spawn of Satan," mused Christina. She looked at Alex. "We've got to find you another nickname."

"Lydia looked like she was ready to take down Addison, right there. Why?" asked Meredith. "Lydia is supposed to be Brianna's mother."

"How old did Lydia look?" asked George suddenly.

"I don't know," answered Izzie. "35, 36."

"How old is Brianna?"

"Like 14," said Meredith.

"So that leaves about a 21, 22 year age gap," said George. "Normal, but pretty young to have a kid. How old is Addison?"

Everyone was silent as they suddenly realized that they had no idea.

"I'm thinking...maybe same as Lydia? Maybe younger." said Meredith.

An odd silence befell the room.

"We'll see what McDreamy says tomorrow and we'll go from there, how's that?" suggested Meredith.

Sounds of approval were heard, and the rest of the night was spent joking about Olivia and her cousin.

Addison was watching tv when Derek came in.

"Hey."

"Hey."

Derek took off his coat and hung it on a chair. "What are ya watching?"

Addison sighed. "Tivo'ed Desperate Housewives from Sunday. I think there's something wrong with our Tivo. Everytime I try and tape the show after Desperate Housewives, it never works."

"Oh. What's the show after Desperate Housewives?"

"It's um...can't remember. Everyone talks about it though. It's supposed to be really good. It's some primetime soap about either lawyers, doctors, or people who live on a beach."

"You know, EVERY SHOW ON TV falls under that catagory," Derek said, sitting down on the bed.

Addison flopped backward. "Ugh. Shut up. I had a really hard day today."

Derek leaned forward. "Really. What happened?"

"I don't want to talk about it."

"Oh, and I'm the one who's not communicating with you?"

"Why are you so suddenly interested in me?" Addison asked.

"I'm trying. I'm really trying here. And I'm interested." It wasn't a lie. He really did want to know what happened. He wanted to know who Lydia was, not to mention if Addison had a daughter. I mean, HELLO? That might be worth talking about.

Addison sighed. Derek could see that she was torn between this opportunity to help their marriage and the fact that this was obviously a secret that she'd kept for so long, and wanted it to stay that way.

"Addi..."

"Fine. It's that girl, Brianna."

"The one who looks just like you."

"Yes. My patient thought she was my daughter."

Is she? Derek thought. But he couldn't say that. A long time ago, he knew how to pump information out of Addison. The trick was (and he still hoped it was) to feed her short sentences with things he already knew, and never EVER ask questions.

"I can see how she could think that."

Addison propped herself up on two elbows and stared straight at him. Satisfied that he wasn't drawing a conclusion, she went on.

"After that, Brianna asked me directions to the lobby, so I took her down there. While I was down there, her mother came to pick her up. I'd already turned around to walk away, and she grabbed me, swung me around, and tried to hit me. Yes, Derek, I said tried. I grabbed her arm and threw it at her, and then she grabbed Brianna and stomped out."

"I'm guessing that there had to have been some dialouge when she was doing all that stuff to you."

"She called my name, Addison Montgomery, and then she called me horrible. And before she left she said I wasn't worth it."

"You must have said something to her."

Addison took a deep breath. "Yeah. I did. When she turned me around I said 'Lydia' and then when I caught her hand I said 'Lydi, no. Not here. Get out of my face.'"

"You knew her."

"Yes."

"I don't know her, but I seem to recall a Lydia that you knew."

"You wouldn't know her."

"I'd like to." Derek kicked off his shoes and moved into a more comfortable position on the bed. This was going to be a very long night.

Brianna waited until her mother was asleep before getting up and sneaking downstairs. She jumped the last three steps because they creaked, and landed cat-like on the floor. She slipped into her mother's study until she found the locked file that her birth records were in. Knowing she didn't have the key, Brianna skillfully picked the lock of the drawer and popped it open. She grabbed her birth file and closed the drawer, making sure to take out the magnetized pin she had in the lock.

She moved to the bottom shelf of a set of drawers on the other side of the room and carefully plucked out a few of her mom's old yearbooks. She quickly glanced around the room to make sure nothing was misplaced before going back to her room and slipping the files and yearbooks into her blue oversized cord purse.

Tomorrow she'd find out the truth.

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