Piper has never seen the Mark of the Dragonfly until she finds the girl amid the wreckage of a caravan in the Meteor Fields. The girl doesn't remember a thing about her life, but the intricate tattoo on her arm is proof that she's from the Dragonfly Territories and that she's protected by the king. Which means a reward for Piper if she can get the girl home. The one sure way to the Territories is the 401, a great old beauty of a train. But a ticket costs more coin than Piper could make in a year. And stowing away is a difficult prospect—everyone knows that getting past the peculiar green-eyed boy who stands guard is nearly impossible. Life for Piper just turned dangerous. A little bit magical. And very exciting, if she can manage to survive the journey.

From Jaleigh Johnson, the acclaimed author of The Mark of the Dragonfly, comes another thrilling adventure in the magical world of Solace. Lina Winterbock lives in the mountain strongholds of Solace. She’s an apprentice to the archivists, the wise men and women whose lives are dedicated to cataloging, studying, and preserving the objects that mysteriously fall from the sky in the scrap towns. Lina should be spending her days with books, but the Iron War has changed everything. The strongholds are now a refuge, and the people Lina once counted on no longer have time for her, so she spends her days exploring the hidden tunnels and passages of her home. The strongholds are vast and old, with twisting paths, forgotten rooms, and collapsed chambers, some of them containing objects that have been lost and forgotten even by the archivists. And in one of the forgotten chambers, Lina discovers a secret. Hidden deep in a cavern is a half-buried airship like nothing she has ever seen before. She’s determined to dig it out and restore it. But Lina needs help, and she doesn’t know anyone she can trust with her secret. Then she meets Ozben, a mysterious boy who has a secret of his own—a secret that’s so dangerous it could change the course of the Iron War and the world of Solace forever.

From the acclaimed author of the New York Times bestseller The Mark of the Dragonfly comes another magical and thrilling story that takes readers on an exciting new adventure. Stella Glass dreams of exploring worlds beyond her home of Solace, but when her famous parents are sent on a historic mission to the Uncharted Lands, it's simply too dangerous for her to join them. By order of the king, she is left behind. Missing out on the excitement is one thing, but Stella is devastated at the thought of her parents flying into the unknown. So she takes matters into her own hands. Instead of staying with family as planned, she steals away and—right before takeoff—sneaks aboard the airship. But Stella isn't the only stowaway. In the cargo bay is a boy who is also desperate to get to the Uncharted Lands. And someone else who's determined to keep the ship from making it there at all...