I don't know if this is all of them but these are the ones I know:
Girl, Missing
Sister, Missing
Missing Me
The Medusa Project series
Blood Ties (amazing book - read it)
Blood Ransom (amazing book - read it)
Six Steps to a Girl
Falling Fast
Burning Bright
So far there are three, one by Nico, Ketty and Ed. There will also be a fourth written by Dylan
There were only 2 domesday books written
There has not been an exact number set as of 2011 for how many Warriors books will be written.
He as written Seven books so far
He has written around 50 kids books
Gordon Korman has written 136 books.
Kathy Mackel has written 12 books.
20009 books
31 books
150 Books
three books
24 books