The Shadow King (Unabridged‪)‬

In a future where all the adults have mysteriously disappeared, gangs of children live brutal lives as scavengers. In this cyberpunk urban thriller, Flip and his friends explore the swamps that surround their ghost town, find unimaginable treasures, and fall prey to a vicious predator who tests their fragile friendships. High-tech weapons that paralyze, underground parking garages run by AIs, and biologic weapons thirsty for human blood set the stage for this sci-fi novelette.