Strain of Defiance

My name is Bixby. I'm a survivor. After eight years of fighting the alien invaders and gangs of ravagers that destroyed our world, we thought we'd lived through the worst of it. We were so wrong. The invaders have evolved. They've become smarter. Stronger. Deadlier. Creating a human-leech hybrid. There may be a way for us to eradicate this new threat. But that entails a perilous expedition over three hundred miles of infested territory. Three hundred miles of leeches, ravagers, and hybrids, all on the hunt for blood. What could possibly go wrong?