Every book you need for the complete series. Not all books have the same cover.
1 Dead Until Dark (2001) 2 Living Dead in Dallas (2002) 3 Club Dead (2003) 4 Dead to the World (2004) 5 Dead as a Doornail (2005) 6 Definitely Dead (2006) 7 All Together Dead (2007) 8 From Dead to Worse (2008) One Word Answer (2009) 9 Dead and Gone (2009) 10 Dead in the Family (2010) 11 Dead Reckoning (2011) 11.5 If I Had a Hammer 12 Deadlocked (2012) Dancers in the Dark (2013) 13 Dead Ever After (2013) **
