Shattered Existence — Cy Bishop

Cole and Leigh know little of the earth-shattering Event which happened generations ago, leveling the planet and leaving behind creatures that dominate the night. All they know is the world they're left with, scavenging for supplies, fighting off raiders, repairing their home from the previous night's damage, and hoping the repairs are strong enough to keep the creatures out for one more night. They even pick up a couple stray kids, and despite Leigh's misgivings, develop a real family. But a nearby settlement comes to their community, seeking justice for a perceived slight. And it's Leigh's head they're after.