Briggs, Andy <br/><br/>
The inventory: gravity 

 -  4 x 0.79 x 7.8  
 - 2016 
 - The inventory .
<br/><br/> In this action-packed sequel to Iron Fist, the nefarious Shadow Helix organization has possession of Newton's Arrow, a super-advanced gravity weapon stolen from the Inventory. It's up to Dev and his friends to get it back, and they follow its trail all over the world. But as they get close, they uncover disturbing truths about the past. 
<br/><br/><label>ISBN: </label>9781407161808 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology<br/>Action or Adventure<br/>Juvenile Literature <br/>Artificial intelligence<br/>Secret mission