road to empire (black flag brigade origins, book 2)

Three teens leave their peaceful home for a perilous expedition through a lawless, well-armed post-apocalyptic America.
In this follow-up to Search Engine, Pitbull, Ivette and Camille battle sickness, raiders, snipers, kidnappers, gangs and slave-traders. They trek south into the unknown in their quest to discover the origins of Ivette’s implant, locate a secret underground compound while pursuing a gang of murderous lunatics.