Daniel X Series
(7 books)


Books in the series:

2.  
Alien Hunter (2008)
* (Short Story)

3.  
Watch the Skies (2009)

4.  
Demons and Druids (2010)

5.  
Game Over (2011)

6.  
Armageddon (2012)

7.  
Lights Out (2015)