Disclaimers: I don't own any of the characters from the shows. Erm. so don't sue.

Spoilers: None

Author's Note: I thought of this in the shower. My hairs soaking wet but I'll survive. There's a crossover (eventually- that's all I'm tellin ya) but don't worry if you don't know those characters. Please read and review. It only takes a couple o' clicks. (Sorry, I know this one is kinda short.)
Revelations
Chapter 1
Catherine walked down the hall of CSI looking for something to do. It had been a quiet weekend, especially without Grissom. She found herself smiling at the notion of Grissom purposely surrounding himself by people. And spiders and bugs. She shuddered at the thought of an Entomologist conference; a bug to her was an annoying buzzy thing, certainly not a pet.

"Hey, Catherine." Greg popped his head round the door of the lab bringing Catherine out of her daydream, a look of urgency on his face that slightly unsettled her.

"What's up?"

"Er.come in here a minute."

"Greg?" Catherine asked, confused and worried. Greg acted strange all the time but this was weird, even for him.

"Just-" He sighed went into the lab, Catherine following quickly.

"Greg. Tell me, what is it?"

"I had to run a DNA profile. When I got the results they came back as." His eyes darted around, determined not to look at Catherine. "Grissom's not here so I thought I'd better come to you with this, I don't know what you want to do with it."

"Do with what?" Catherine asked, mildly annoyed. She watched as Greg turned and picked up a piece a paper near the computer and handed it to her. His expression was inquisitive, worried even.

'DNA Match' she read. She scanned over the document and her eyes settled at the bottom.

'Jessica Grissom'

"What. who?" Catherine whispered.

"I- I ran it through the database and the sample matched a Jessica Grissom. I was. curious. There's not many Grissoms around, I wondered if it was any family or relation to our Grissom. please, I know I was out of line, its not my call to make but I've done it now anyway. The sample, Catherine, it's his daughter."

Catherine's stomach turned upside down at the words she didn't want to hear, didn't wasn't to accept. She spent fifteen years trying to say that she actually knew Gil Grissom. Trust, one of the fundamental basics in making a relationship work, whether it was a business relationship or more. How could he not tell her this?

Suddenly her mind was made up.

"So, where does she live. She doesn't live with Grissom. How old is she?"

"I did a bit of research. She's fifteen, she was put up for adoption when she was a baby," Greg informed her, pain creeping into his voice.

Fifteen years ago a little baby girl was born. Fifteen years ago her father turned up in Las Vegas and in Catherine's life.

"Who are her- her foster parents?" The idea of Grissom doing this was incomprehensible; she couldn't understand the situation. "Where can I find her."

"She's." Greg bit his lip, fighting down the impending nausea. "She's in the morgue Catherine. She's dead."

A silent tear rolled down Catherine's cheek. In that split second she felt betrayed. Anxious. Scared, scared because she didn't know why this was kept from her. In that split second her world fell apart.
TBC.
Go on. review, you know you want to. More will be revealed in a short while.