Arrival — Chris Morphew

Book 1 in the bestselling Phoenix Files series. Luke is having a rough year. When his parents split up, his mum drags him to Phoenix, a brand-new town in the middle of nowhere. But Phoenix is no ordinary town. There are no cars, no phones and no internet. Luke thinks this is as weird as it gets. Then he discovers that someone is plotting to wipe out the human race. Phoenix is suddenly the safest and most dangerous place on earth. And the clock is ticking. There are one hundred days until the end of the world.