Hidden under a small suburban town the Inventory is a collection of the most incredible technology the world has NEVER seen invisible camouflage Hover Boots indestructible metals & the deadly war robot Iron Fist Dev's uncle Charlie Parker is the Inventory's mild-mannered curator with security provided by Eema a beyond-state-of-the-art artificial intelligence system But security is catastrophically breached when Lot & Mason from school turn up unexpectedly & hot on their heels a ruthless gang of thieves working for the Collector & the Shadow Helix organization If the thieves succeed in their goal to seize the Iron Fist Dev his friends & the world are in a whole heap of trouble