Evolution — Jason Halstead

Vitalis - Evolution is book six in the Vitalis series

When a highly adaptive native species merges human DNA with its own, the results are enough to threaten the existence of everything in its path. The small colony of human survivors has to decide how they'll deal with the newest menace Vitalis has pitted against them.

Fear turns to terror when the residents of Treetown learn that the new breed isn't trying to destroy them, it's stealing them away in the dark of the night and exposing them to horrors so terrifying madness is the only escape.

Look for these other Vitalis books:
Book 1: New Beginnings
Book 2: The Colony
Book 3: Parasites
Book 4: Screamer
Book 5: Squatter's Rights