Difference between synopsis and book series overview

Hi
I e-mailed a publisher with a question about submitting the first book in a series. The books are not stand alone and the HEA only happens at the end of the last book. She's asked me to send the book and a 1-2 page series overview. Of course, I am happy to do so, however, her e-mail says "don't send synopsis". I thought an overview was the same as a synopsis so now I'm not sure how to tackle this. I googled and got a list of synopsis help.

So… A bullet point list of characters and the main conflict and resolution in each book? A blurb-type exposition of the action in each instalment? Should I think of an overview as a synopsis with everything but the main thrust of each book, the characters and how these weave together to the climax at book 3 chopped off?

Any insight would be much appreciated.

(I've always wanted to use that emoticon. Thanks!)

She did say 1 - 2 page so I tend to think it's not a few sentences for each book since there are only three books. I'm thinking to maybe condense, condense and then condense my 3 synopses into exactly 1.5 pages. I'm anal like that.