Well I'm just going to try and see what responses I get back from this. I remember reading a book series when I was in elementary school about a little girl who had dark hair and it revolved around a mystery in each book. They weren't very long... that's pretty much all I remember... sorry!

Around what year?

I was in elementary school in the early 90s... but I rememer thinking that the book itself was a lot older than that. I've always wondered about it... but never can finda nything. I want to say she had a dog or a cat with her pretty much all the time. I know this is a long shot... just thought I'd see if anyone would remember something else maybe? Who knows. Thanks anyway :)

Well I'm just going to try and see what responses I get back from this. I remember reading a book series when I was in elementary school about a little girl who had dark hair and it revolved around a mystery in each book. They weren't very long...that's pretty much all I remember....sorry!

I am not sure which book you meant.
I did a bit of a net search

http://users.tellurian.net/bksleuth/info.htm
Maybe one of the names of a book will ring a bell.

http://library.duke.edu/specialcollections/bingham/guides/beyond/mystery.html

Sounds almost like Nancy Drew... almost...

I was thinking Nancy Drew but she said little girl.