Iron Fist

Hidden under a small suburban town, the Inventory is a collection
of the most incredible technology the world has NEVER seen: invisible
camouflage, HoverBoots, indestructible metals, and 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 and Mason from school turn up unexpectedly and, hot on their heels, a ruthless gang of thieves working for the Collector and his shadowy Double Helix organization. If the thieves succeed in their goal to seize the Iron Fist, Dev, his friends, and the world are in a whole heap of trouble.