Jack’s family are adrift on a battered boat, in a flooded world. Their village has been destroyed by a sickness known as The Plague, and their only chance of survival is to find new land to settle on.

But Dad has now become ill, and Jack can see a dark boat following behind them, which might be Ravangers.

Can Jack escape them, follow the stars and find their new future, or will they be forever lost at sea?