There are currently 19 books.
See the related question for the books in order.
there are only 10 books in the series and number ten comes out August 31 2010
There are 11 books in the main 39 Clues series.
The Isle of the Lost book series consists of four books.
There are four books in the Wolven book series written by Di Toft: "Wolven," "The Twilight Circus," "Shadow of the Wolf," and "Ghost of the Forest."
There will be 8 books in the series. The last book is to come out February of 2012.
It is not a series, it is a stand alone book.
There are currently three books in series 2
What???? If you are asking how many books are in the Charlie Bone Series, eight.
Yes there is there are many books of the sisters grimm series
About a billion or more
8
Burned is not the final book in the series i do not know how many books there are but awakening is the one after is it
There will be three books. The last books title is "the serpents shadow".
There are currently two books in the "Little Secrets" series by Emily Blake. The first book is titled "Little Secrets" and the second book is titled "Hidden Lies."