SOLVED. Nancy Drew book by Carolyn Keene. [s]

[There]

It’s the first novel I read back when I was in sixth grade in 1996. I am 200 percent sure it’s Nancy drew book , but there are so many of them I haven’t been able to find it. In this book she has girl named Watson to help her solve the mystery.
The girl is thrilled about this and at one point compares Nancy to Sherlock Holmes and herself to dr Watson.

[Sarah]

I found a review with someone mentioning a 14 year old girl by the last name of Watson assisting Nancy in this book: Enemy Match

[There]

Thanks, this is it. No wonder I couldn’t find it, the name Watson isn’t anywhere in the blurb, and I have forgotten the story, so even though I read a lot of blurbs, I couldn’t find it.