Title: Iron fist
Description: "The world's best kept secret. The world's strongest vault. Tech the world has never seen: The Inventory. When the Collector breaks into The Inventory to steal the Iron Fist technology, Dev, Lot and Mason are trapped inside, becoming The Inventory's only defence. What would you do to stop the most dangerous weapons in the world from falling into the wrong hands?"--Publisher's description.
Subjects: Juvenile fiction, Technology, Children's fiction, Science fiction