I had this Idea in my head since I've seen only a few episodes. I'll write in the end of the 6. Season, and maybe go on with the 7th later. But some of the facts wouldn't go with my Idea, so I'll ignore them.

Witness

A black SUV was parked near the Crime Scene. Seconds Later Temperance Brennan was looking at the burned body, which was still warm. While Seeley Booth was talking to the Officers.

Seeley: "You said you received a call, has anybody witnessed what happened?"

Officer: "Yes a girl called. She refuses to give any answers about herself, but talks quite freely about what she saw. I'd say she's about 10."

Booth went to talk to their witness.

Booth: "So this guy just threw something on the ground, took a gas can out of his car and lit the fire, after he emptied the gas over the Body. And you were hiding the whole time?"

Girl: "Yes, only I didn't know it was a body back then. He stood there for a while watching the fire and then left. That was when I came out and took a look on what was burning. As I saw it was a corpse, I dialed 911."

Booth: "That was really good of you. Did you see the face of the Man, or how do you know it was a he?"

Girl: "I didn't see his face as he was wearing a mask, but his Posture was clearly the one of a male. And before you ask, I wasn't able to read the whole number of his license plate. But the first three were 528. The car was some Kind of Truck, with a dark color, like a dark blue or grey, or even black, the light of the fire wasn't enough to determine this exactly."

Booth: "Wow you're good, weren't you scared at all?"

Girl: "Not really, only that he might see me. As long as he doesn't know that I saw him, there is no reason to be scared. And secondly I kind of saw worse than the body of a total stranger set on fire."

Booth: "All right, why don't you tell me the name of your Parents so we can call them. But I'm afraid, you'll have to come to the Lab, so a Picture could be made of the Man and maybe the car."

It was Easy to see that Agent Booth wasn't just impressed, of this girl. You could say he was scared of the way the girl handled all this.

Girl: "I'll come to the lab, but there is no way I'll give you any knowledge about my identity. And just so you know, I wouldn't bother checking the missing persons database. My parents left me when I wasn't even out of the Hospital yet, I'm pretty sure nobody reported me missing, and I'd like to keep it that way."

At that moment, before Booth was able to respond in any kind of way, Bones announced that she had finished there, and everything should be transferred back to the Jeffersonian.

At the Lab, Angela went to work with the Girl, so they could make a photo fit of the man, at least everything the girl could say, which was everything that is recognizable when someone wears a ski mask. With the girls description Angela was able to determine the brand of the car and even the exact type. After that the girl just sat around in Cam's office, because they refused to let her go on her own. After a while Booth came back with Sweets, who went to try to talk the girl into giving them a sign of her identity, while Booth went to get the news about the case from the squints.

Sweets:" Why don't you want to tell us who you are?"

Girl: "So you can send me back right after this murder is solved? No, sorry don't think so, oh and by the way, I don't need a shrink, so you'll better find yourself something else to do."

Sweets: "What was so bad, that you're trying this hard not to go back? Oh and by the way the Specialists here, can find out the Identity of a dead person, so I think they can do the same with yours."

Girl: "You don't need to know. And by the way, to find out my identity they'd need me to cooperate. What makes me pretty sure, my identity will be kept my secret. "

Sweets: "In this case we'll have to inform social services, since you clearly are a minor, you'll need a legal guardian."

Girl: "Oh great, I'm trying to do the right thing, and as reward I get to go back into the system. "

You could see that this girl had no Intention to cooperate on this in any way. Before Sweets was able to answer Booth entered the room.

Booth: "I've already talked to Dr. Brennan, she is a registered foster parent, for some private reasons. For now you'll go with her, since you're our prime witness. And later we'll find out where you belong and make sure you'll be safe. Why don't you at least tell us how we should call you?

Girl: "No sorry, I was intelligent enough to make some Money before I left, so I could buy myself some stuff, considering some nights are cold. Considering how I've planned my leaving, I'll clearly not let you take me back, or even just back in the system."

Nobody saw Bones arrive, so all three were shocked when she spoke.

Bones: "I've been there, and since living on the streets isn't an option, you'll have to go back. But I can assure you, I won't let you go anywhere you'll have to fear harm."

The girl didn't respond in any way. So Booth stepped in.

Booth: "Okay, why don't you two go find some clean clothes for her and then home so she can shower."

Bones: "You're right; she looks like she doesn't have had one in months. "

On a normal occasion this girl would have argued. She didn't like if anyone made decisions for her, and she clearly didn't like to have to go home with someone else. But she was spying on these scientists for almost the whole Day. So she was pretty sure, she had nothing to fear about this woman, she was too logical to use any kind of violence.

After some shopping, which the girl clearly didn't like, the two of them found themselves in Brennan's car, for the second time that day.

Bones: "So how about you give me a name that I can call you. Since we're going to live together for a while it would be weird, to just say "you" all the time. As long as you don't tell me your full name I'm sure it won't help us to find out who you are."

Girl: "Okay I think you're right, but all I'm going to say is how I like to be called."

Bones: "I assume for now, I've got to go with what I get. So how shall we call you?"

Girl: "Sam."

Bones: "Nice to meet you Sam. I'm Temperance, but you can call me Tempe, since Dr. Brennan would be too formal."

Sometime later Booth arrived at Brennans apartment carrying some boxes of Chinese food. Sam was still in the Bathroom while Bones opened the door.

Booth: "I thought I'd bring you girls something to eat, since I'm almost sure you don't have anything a kid would like to eat. Where is she anyway?"

Bones: "We would have been just fine Booth, but thank you. She's in the bathroom."

Booth: "you're welcome Bones."

Bones: "She gave me a name. Sam, although I'd say it's not enough to find out where she belongs."

Booth: "That's okay Bones, at least we don't have to call her "girl", we'll find out where she belongs, but right now I'd rather catch a murderer. Thanks to Sam we've got a name from the owner of the car. It turned out that in the area only one car fits the description has exactly these starting numbers. Many adults wouldn't have been able to give such exact information."

Bones: "She knows that there is no reason to fear what doesn't affect your live."

Sam came out of the bathroom, her long brown hair loose but again underneath her hat a brown baseball cap with the Letters DC on it. Only the hat wasn't as clean as the rest of her cloths now.

Bones: "Why don't we wash that first?"

With these Words Brennan lifted the hat of the Girls head, too fast for anyone to react. Just a second later you could see Booth's shocked face.

Booth: "Wow, Bones do you see what I see?"

Bones: "Hm… There are some resemblances, in face structure, but this doesn't have to mean anything."

Booth: "I'd say she's the spitting image of you, not just her looks, she went into detail just like you, so she wouldn't have to care for the person."

Sam: "Hey! Stop for a minute. First, I do care for the victim, this is exactly why I called 911, I know I was risking having to go back. Second, I'm no one's image. I don't have any family so stop that. And third this hat stays exactly how and where it is!"

With this she took her hat back and put it back on.

Bones: "since you said you were abandoned as an infant, you can't know if there is any family left."

Booth gave her a glare, telling her silently she should stop, but Brennan didn't realize it.

Booth: "Bones you should probably leave that for now."

Brennan didn't really understand him, but surprisingly she wasn't the only one.

Sam: "Why? It's the truth, so I clearly have to deal with it. And yes there may exist blood relatives, but as you said my parents abandoned me as an infant, I don't care if there are any relatives, they didn't care for almost 12 Years now, so why should they start now?"

Bones: "It's possible that they didn't even know about you."

Booth: "Who's hungry?"

Sam: "As long as it isn't meat, I am."

Booth gave her a suspicious glare before he went to put the food on the Table, Brennan brought the dishes and declared that she doesn't want to see the dirty hat around her table. After a small argument, Sam left it over the back of her chair.

The next morning Sam was kept safe at the Jeffersonian while Brennan and Booth went to question the suspect and later to see the victim's Family since he was identified by now.

Booth: "I'm sorry but did your son have any enemies? Someone who wanted him dead?"

Man: "Not as far as I know, he lived on campus but always told us he minds his own business. He said it's better not to care about the stuff the others do."

Bones: "Booth he had some broken bones from fighting…"

Booth: "was your son in any kind of trouble lately?"

Man: "Not that we know."

At least Booth was able to get the address of the victim's girlfriend. With the information they got from her, they were able to sort everything out. The son of the car owner fell in Love with the victim's girlfriend, they got into some fights and during the last one, the victim fell badly. The Father wanted to protect his son, so he tried to get rid of the evidence.

Since it was already evening everyone went to the diner so they could get something to eat and afterwards they each headed home.