Scavenger: Zoid

Humans are fighting for their future, and one young boy might be their only hope. Scavenger: Zoid is the first in a brilliant sci-fi adventure series from the team behind the Edge Chronicles, Paul Stewart and Chris Riddell. Perfect for age nine and up. A spaceship the size of a city drifts through space on its century-long journey to find a new Earth. When it launched it was populated by thousands of hopeful passengers and the most technologically advanced Zoids in the world, ready to serve the crew's every need.
But that was then, and this is now. The Zoids rebelled against their masters, wiping out most of the crew in one bloody uprising. Now the few remaining humans are hunted by the Zoids like vermin. Fourteen-year-old York is a Scavenger - he hunts Zoids and kills them by any means he can, bringing back their parts to mend the technology on which the few remaining humans rely. York has always battled to survive, but now the fate of his people is in his hands .