The fifth book, The Black Circle, is currently scheduled to be released August 11, 2009.
the name of the 5th 39 clues book is the black circle
In April 2011
Madrigals
It's already out
February 2, 2010
October 26 2010
Patrick Carman wrote The Black Circle, the 5th book in the 1st 39 Clues series.
You enter the code from book 2. It comes with that.
It will be released on August 31, 2010.
The name of the 10th 39 clues book is Into The Gauntlet.
there is no 49 clues book it is 39 clues
The title of the seventh 39 clues book is The Viper's Nest. My agent Code is P2J34GKXXP on the 39 clues website.