The final instalment of this brilliant sci-fi adventure series from the award-winning team behind The Edge Chronicles, Paul Stewart and Chris Riddell.

The zoids have taken over the Biosphere and it is up to York to journey back into the memory banks of the central computer to discover the glitch that first corrupted the zoids and threatened humanity.

In danger of losing himself in this warped world, York must battle his own mind to find the answers he needs.

With the fate of mankind in his hands, is York strong enough to hold on to himself?