When I was 12, I found out something that I wasn't supposed to know. Only 12 and I found out that I hadn't been an only child. Only 12, when I found out the truth.

I had been at my Grandmother's house, my mother's mother, for the weekend. She owned this restaurant, but her house was attached to it.

I had been there many times, but usually for family get-togethers. This time I was there on my own to visit.

Everyone was busy, so I decided to roam around on my own.

I had been in most of the areas of the building, nut my curiosity was always drawn to this one locked door. I had never been told why it was locked, but I hadn't asked either. The door's existence seemed to be ignored.

So that day I went to the door. I pulled on it as usual, and to my surprise, it opened. I went into the room.

It didn't look very impressive; there was just a bunch of furniture in the room. But there was another door too. So I went into that room, since the door wasn't locked.

The walls of the next room were a light lavender color. The carpet was off white. The furniture was a light wood shade. There was a bed with a canopy over it there too. It was a girl's bedroom. There were dolls and stuffed animals throughout the room. On a set of shelves in the corner were medals and trophies for gymnastics, ice skating, and a few other sports.

At first I wondered if it belonged to my mother or aunt, but then I saw the dates on the trophies, 1998-1993, the year I was born. I didn't know what to make of it, so I continued looking.

My heart was racing through me as I looked through the dressers and closet. I found clothing in them, her clothing. Then I started to look through the desk.

That's when I found her name, Lydia Michaels.

Michaels, that was my Grandmother's last name, my mother's maiden name. Her name was inscribed on a nameplate, like one that would go on an office desk.

Then I looked further into the desk. I found pictures of her. She was about my age then. In most of the pictures, she was wearing the outfits for her activities.

She looked similar to me, with blue eyes, but her hair was a light brown color.

Then I saw the strangest pictures of all. The first was labeled June 17, 1993, two days after I was born. The picture showed Lydia holding a baby. The caption read, 'Lydia with baby sister Lindsey.'

Sister, she was my sister. A girl who I had never even heard of was my sister.

The next picture confirmed it. It showed my mom holding the baby, me apparently, and Lydia was sitting there next to us, and my dad was next to her. 'The Willows Family,' the caption read.

My heart beat even faster, my hands started to shake. I continued to look through the rest of the desk, and I found birthday cards, a diary, and another family portrait. I took those things, and I left, closing the doors behind me. Then I ran to my room and I locked the door behind me.

I had discovered a mystery, and I had to solve it.

I hope you guys like it, eventually more will come, if I get reviews.

It's based on a dream I had, and I know it doesn't really go with the characters of CSI as much as it should, but neither do some other fics.