Hey guys! Here's another chapter! Thanx 4 all the reviews...they rock! Enjoy!

Warrick, Nick, and Greg studied the new miniature, trying to find any clue to the exact location of the scene. It was somewhere in the middle of the desert; that much was obvious. But with most of the state covered in desert, Catherine could be anywhere.

Grissom watched all this without taking note. He still couldn't believe that Sara was capable of murder. Then again, it wasn't really Sara, was it? It was Natalie. Natalie was the Miniature Killer. Sara had disappeared a long time ago.

"Hey, boss, where's Sara?" Greg asked, pulling the supervisor from his thoughts.

Grissom remained silent, a strange look on his face. He was trying to decide whether to tell them the truth or not.

"Gris?" Both Nick and Warrick looked up at him questioningly. "What's wrong?"

Deciding that the truth would work much better than a lie, he rattled off Natalie's details, including her true identity.

"So, Sara is the Miniature Killer?" Nick said, in disbelief.

Grissom shook his head. "No, Natalie is."

"But I thought you said Sara is Natalie," Warrick said, trying to understand.

"Yes and no."

They all stared at him, puzzled expressions on their faces.

"After Natalie left the foster home, she was adopted and renamed Sara," Grissom explained. "She embraced her new life. So much so that the little girl once known as Natalie and the life she once had was completely forgotten. Natalie no longer existed. At least, for a while.

"The troubled little girl was still there in Sara's subconscious, waiting. And the more Sara tried to suppress Natalie, the more she fought to be let out. And the more she fought, the stronger she grew, becoming more than just a part of Sara's past. Natalie became a second persona. Another personality trapped within Sara's mind, battling for dominance."

"So, what are you saying?" Warrick asked.

"Sara's personality split. It's called DID, dissociative identity disorder. Two personalities inhabiting a single body. Natalie is a part of Sara. A part of her that she tried to lock away once. But something caused Natalie to resurface. A stresser of some sort. God knows, Sara's been through a lot. Something must have gotten her pretty shaken up. And whatever it was reawakened the latent personality."

Greg scratched his head, trying to process all that information. "So Natalie's the Miniature Killer, but she's really Sara's evil alter ego."

Warrick rubbed his temples. "I can just hear the court case now."

Nick's mind throbbed. There could be no doubt about it. "They'll crucify her…"

"Hey, guys! I think I might have something here!"

All heads turned toward Greg who was holding the toy car in his hands, examining the back of it very closely.

"What'd you find, Greg?" Grissom asked, a glimmer of hope in his eyes.

The young CSI turned the car around and held a magnifier up to its rear bumper. "Girl really is a stickler for detail. It's got a license plate, complete with VIN number. I'll run it through the database."

An intense silence fell over the room as Greg entered the information into the computer. It didn't take long for the results to appear on the screen. The real car was wrecked in a DUI several weeks ago. A hint of recognition flashed across Grissom's face. He had worked that case alongside Catherine…and Sara.

He stared at the screen wide-eyed when Greg pulled up a photograph from the scene. Sara had been caught in the background of the picture. She seemed to be glancing at something out of frame, her eyes burning with a mixture of jealousy and rage. Grissom closed his eyes, knowing exactly what Sara had been looking at. She had been watching Catherine and him, noticing the smile on Grissom's face after Catherine had thrown out an unusual comment about their new case.

His mind went back to the miniature. This time, it was different. He knew that now. This time, it was personal.

"She holds me responsible for the death of Ernie Dell," he said, the realization finally hitting him. "I took away the only person she ever loved, so she's going to do the same thing to me."

All three guys stared at him in shock, barely able to grasp what their boss had just admitted. He was in love with Catherine.

Warrick opened his mouth to say something, but Grissom wasn't listening. He was still deep in thought, the gears in his mind working overtime.

"This isn't about a psychotic reaction to bleach, or her dead sister…"

Sofia and a team of cops headed for Sara's apartment, busting down the door when she didn't respond to their knocking. Sara immediately bolted for the window, climbed down the fire escape, and disappeared into the crowd below. She wandered through the streets, confused and overwhelmed. But she didn't get very far.

Nick and Warrick were right on her tail. They spotted Sara quickly and grabbed her. As they led her out of the throng of people, Nick glanced down at her and their eyes met. But what he found there scared him.

He looked into the eyes of one of his closest friends…

…and he didn't recognize her.

"Sara…" Nick watched, still in disbelief, as an officer stuffed her into the back of his cruiser.

A hand touched his shoulder. "Dude, that's not our Sara anymore."

Brass and Grissom watched their friend from behind the two-way mirror. Sara sat there in the interrogation room, alone. But she wasn't really Sara, was she? She was Natalie. She was the Miniature Killer. She was just like any other criminal that passed through those doors. And then again, she wasn't. She was still their friend, at least on the outside. And that's what was making it so hard for either man to go in there and face her.

"I—I want to go in there," Grissom said, in a barely audible whisper.

Brass gave him a look. "Are you sure? It's hard enough questioning a criminal. Questioning a friend is even harder."

Grissom took a deep breath, gathering his courage. "I can handle it."

Brass was still skeptical, but he let Grissom go.

Grissom hesitantly stepped into the room and introduced himself. Sara looked up at him and began glancing around frantically.

"Grissom?"

"Sara?" Grissom responded quickly, realizing that Sara had regained control for a moment.

"What—what's going on? Where am I?"

"Sara, we know about Natalie. She—"

"No, no." Sara shook her head. "No, Natalie—she can't—she…"

Sara's voice trailed off and her eyes fluttered.

"Sara?" Grissom asked, worriedly. Something was wrong. "Sara, are you okay? Sara?"

Sara's eyes suddenly flew open, a menacing smile on her face.

"Guess again!"

Grissom pulled back, eyes wide. "Natalie."

Wow…kinda creepy, huh? What's Gris gonna do now? Review to find out!