Includes bibliographical references.

Phase one of the invasion began with spores that turned
everyone over the age of eighteen into vicious, unhuman
beings, unrecognizable as the trusted adults they once
were. Invaders transformed the small town of Creek's Cause
into a war zone. Holed up in the local high school,
frightened kids and teenagers struggle to survive - at
least until their eighteen birthdays. Now, a new breed of
predatory creatures has been spawned and is spreading,
devouring everything in its path. Earth's only hope is two
teenage brothers and their closest friend, Alexandra, who
may hold the key to humanity's survival. But how far will
they have to go to save everyone and everything they care
about?