Andy Briggs 
The Inventory: Gravity 
Gravity

Hidden under a small suburban town, the Inventory is a collection of the most incredible technology the world is NOT ready for. In this sequel to Iron Fist, much of the Inventory”s technology has fallen into the wrong hands – including Newton”s Arrow, a powerful weapon that can manipulate gravity. It”s up to Dev and his friends to get it back, and they follow the weapon”s trail around the world. Along the way they learn the terrible truth about Newton”s Arrow”s capabilities … as well as disturbing details about Dev”s origins.