Vitalis Series by Jason Halstead Vitalis #1 New Beginnings v-1 Jason Halstead Read online 12 Published: 1998 Vitalis #2 The Colony v-2 Jason Halstead Read online 31 Published: 2000 Vitalis #3 Parasites v-3 Jason Halstead Read online 26 Published: 1994 Vitalis #4 Screamer v-4 Jason Halstead Read online 6 Published: 2008
