Escape isn’t the hardest challenge for a slave – it’s staying free afterwards.

Siblings Thomas and Mia find themselves fleeing across a desolate land, hounded by the monstrous sand-hog, a steam-powered war machine bent on recapturing them at all costs.

Thomas fears the worst. He knows the tyrannical King Williams seeks Mia and her mysterious powers of foresight, but it seems even her gift cannot save the day when the sand-hog corners them. It isn’t until they cross paths with a group of rebels and stumble across rumours of a lost airship...