A loyal robot will storm an enemy tower to set a child free.

Block tracks Wally to an armored skyscraper in Manhattan. Outside, SoldierBots pen human survivors behind blast fences. Inside, answers-and Wally.

To reach her, Block must infiltrate the tower, outsmart patrols, and survive attack drones. One wrong move ends the mission. One brave choice could break Mach X's grip on New York City.

Action-packed, character-driven post-apocalyptic science fiction

If you love robot protagonists, relentless stakes, and page-turning sci-fi action, start Book Four of the complete Rusted Wasteland series. Block's unwavering devotion to his found family blurs the line between man and machine-and will tug at your heart.

This hope-punk tale of unlikely friendship and robot redemption will keep you reading late into the night.