Young adult book, can't remember the name?

Question: Young adult book, can't remember the name!?

I found this book in a scholastic booklet about a year ago, but decided not to get it, and now i really want it and can't think of the name!. It is about a girl i think, and i think it is a mystery!.!.!.i know that there were like websites to go on, i think numbers to call, and i think a disk to put in the computer with more info maybe!.!.!.!.!.if you have any idea's it would be appreciated!.!.!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

It sounds like Cathy's Book by Jordan Weisman

"One of the most creative and exciting books to publish in 2007!. Unique binding containing a fully illustrated journal, an evidence pack which includes photographs, memos and telephone numbers among other things fully related to the story!. Websites to be checked out, phone numbers to call!. Lara Croft meets China Town!."

There's a sequel now, too, called Cathy's Key!.Www@QuestionHome@Com

Hi!
You may try the forum links below , I hope you find your book - good luck !.
http://www2!.scholastic!.com/browse/index!.!.!.!.
=^!.!.^=
http://whatsthatbook!.com/
http://forums!.abebooks!.com/abesleuthcom
http://community!.livejournal!.com/whatwas!.!.!.
Www@QuestionHome@Com