No. its 6 books per series
It is out already, so is the tenth book.
The ninth book in the House of Night series is called Destined.
The book is called the fourth apprentice, the series is called omen of the stars
The ninth book of Gaurdians of Ga'hoole is called "The First Collier".
the 4th apprentice omen of the stars: the fourth apprentice
Thunderball (1961)
Yes. The ninth book in the Pretty Little Liars series is called Twisted
October 12 2010
Yes, the 5th book of The Last Apprentice series is Wrath of the Bloodeye.
There will be, which is called "Scorpia Rising".It will be called Scorpia Rising.
Some time in 2010:)
In the Warriors series, the4th apprentice will be the first book of the 4th series.