Publisher's Synopsis
Trapped underground! It begins with a simple mission - but when the young Armouron use an escape route through the undergound sewers, they discover that their sworn enemy, the Chairman - head of the Perfect Corporation - has them in a trap. Hunter-killer drones surround them! As the knights struggle to survive the challenge, they discover something truly astounding - parts of the tunnels are not what they seem. And what's more, they are not alone...
