Description

Col lives on the Upper Decks of the juggernaut Worldshaker, a mobile city as big as a mountain. He has been chosen as next Supreme Commander - but then a Filthy escapee from Below - a girl named Riff - appears in his cabin.

"Don't let 'em take me " she begs.

Will he hand her over, or will he break all the rules? Col's safe, elite world is about to fall apart.