The answer is "find the other ekaterina scientist who came too close".
Anne Cahill Did Not Drown
The symbols in a 39 clues book refers to some sort of code. There is usually a key. The key in book 3 can be found on the very first page of the book. Most codes start on the 39th page. This book does too. When you figure out the code go to the 39 clues website and there is a page on this site with all the books on it. There should also be a button on the page which you solve the puzzle in the book. Hope this helps!
there is no page clue in 39 clues book 9
they are clues to finding the answer to the mystery it tells you on the first page of the book
clue moved for safekeeping
The answer to The 39 Clues book 1 page puzzle is "Maggie Powers."
The page numbers code is "Time is running out for the ring keeper". (Amy) The inside front cover message is "Find Medusa".
I don't know the answer on the inside page, but several pages have Morse cod eon them. Decoded it says "There is another madrigal watcher"
page 183
Look To India
The passport book number for a Jamaican passport is located on the biodata page, which is the page with the holder's personal information and photo. It is a 9-digit alphanumeric code usually found at the bottom of the page.
284 Main Street.