Still separated, Thomas and Mia are each closing in on final secrets to unlock the Clara, the mighty airship that can win them their freedom at last. And while their hopes are pinned on the mysterious Alita's Shell, none know what lies behind the ancient doors.Nor are Thomas and Mia the only ones who seek the airship.Elisabeth continues to conceal her true motives and more, new players are about to make themselves known in the race to uncover the past. Not to be beaten, King Williams sends his forces deep into the Inland Federation too, desperate to steal the secrets himself - and have his revenge.