Bøger i Dragon of Shadow and Air serien

When secrets come to light.On the run and looking for the invisible, Aella and her dragon are fugitives once more.With nothing but a glowing orb to guide them and the few friends they have left in the world, they embark on the road trip of a lifetime.But is the Sanctuary everything she was promised it would be?The agency doesn't want to give up or admit defeat, and Aella and Zephyr have beaten them twice now. Will they truly let her slip through the net? Or are they going to find her no matter where she hides?