The breathtaking action and whirlwind adventure build to a climax in this thrilling conclusion to the Sky Fall trilogy from the bestselling author of the Keeper of the Lost Cities series.

Vane Weston is ready for battle. Against Raiden’s army. Against the slowly corrupting Gale Force. Even against his own peaceful nature as a Westerly. He’ll do whatever it takes, including storming Raiden’s icy fortress with the three people he trusts the least. Anything to bring Audra home safely.

But Audra won’t wait for someone to rescue her. She has Gus—the guardian she was captured with. And she has a strange “guide” left behind by the one prisoner who managed to escape Raiden. The wind is also rising to her side, rallying against their common enemy. When the forces align, Audra makes her play—but Raiden is ready.

Freedom has never held such an impossible price, and both groups know the sacrifices will be great. But Vane and Audra started this fight together. They’ll end it the same way.

Time is running out for Rhine in this conclusion to the New York Times bestselling Chemical Garden Trilogy. With the clock ticking until the virus takes its toll, Rhine is desperate for answers. After enduring Vaughn’s worst, Rhine finds an unlikely ally in his brother, an eccentric inventor named Reed. She takes refuge in his dilapidated house, though the people she left behind refuse to stay in the past.

While Gabriel haunts Rhine’s memories, Cecily is determined to be at Rhine’s side, even if Linden’s feelings are still caught between them. Meanwhile, Rowan’s growing involvement in an underground resistance compels Rhine to reach him before he does something that cannot be undone. But what she discovers along the way has alarming implications for her future—and about the past her parents never had the chance to explain.

In this breathtaking conclusion to Lauren DeStefano’s Chemical Garden trilogy, everything Rhine knows to be true will be irrevocably shattered.