There are currently 5; City of Bones, City of Ashes, City of Glass, City of Fallen Angels, and City of Lost Souls. The 6th and final book, City of Heavenly Fire, comes out in 2014.
The three mortal instruments are the mortal cup, sword, and mirror.
No, Alex Pettyfer will not be in The Mortal Instruments.
The name of the lake in the mortal instruments series is Lake Lyn.
City of Glass - Mortal Instruments - has 560 pages.
The fourth book, City of Fallen Angels, was released on April 5th 2011.
City of Bones - Mortal Instruments - was created on 2007-03-27.
City of Glass - Mortal Instruments - was created on 2009-03-24.
There are 3 instruments
The movie won't come out.... ABC Family is doing a tv series on the mortal instruments with a new cast starting from the beginning
Cassandra Claire who also wrote the infernal devices (something like that) that is either the sequel of prequel of the mortal instruments
The Mortal Instruments will become a movie.
Cassandra Clare