The second novel in a brilliant series of fantastic adventures by the bestselling author of the "The Huntress" trilogy. Perfect for readers aged 8-12 and fans of Philip Pullman, Abi Elphinstone, and Katherine Rundell.

Bea Grimspuddle may not yet be a "dreamstalker," but she is already a hero in the magical city of Silvervein, after defeating the terrifying Nightmare Queen with her friends. Now she is about to begin her training as a dreamstalker and prove that she can be a part of the secret galaxy of dreams.

Dreamstalkers have taken off, establishing their base on a huge airship inside a cloud. On the Sky Ship, Bea discovers a wondrous world of technology, magic, and secrets – but there is much to learn, and some students are jealous of her popularity. And very soon, she faces even greater fears… as dreamers start to disappear, dangerous creatures invade the waking world, and a strange boy falls from a dream, refusing to speak. The destructive events and chaos are blamed on Bea, and she is expelled from the galaxy before she can prove herself.

As a dark force approaches, and her galaxy refuses to listen, Bea and a small crew of friends are forced to undertake their own fight in the skies. But will they reach the ancient "dragon scrys" in time… or will a familiar enemy arrive first?