
The group is introduced to where they will be living during their stay, Alluveterre, and are taken to the Black Swan's Collective where Sophie receives her memory of the Boy Who Disappeared (when she was five she saw a mysterious boy who light leaped away. Upon their arrival, it is revealed that Della has stowed away and will be joining them at the Black Swan. Leaving everything they know behind, Sophie and her friends Fitz, Keefe, Biana and Dex go to live with the mysterious Black Swan. She held the glass into the fading rays of sunset, letting the searing beam of white light refract toward the flames of Everblaze. But she knew enough of its power to realize it was their best chance. She still didn’t fully understand the reason the Black Swan had given it to her. She reached for her pendant-the sign of the swan carved into cold black metal curled around a piece of smooth glass.

The last word made it impossible to look one of the figures in the eye. The Neverseen shouted insults and warnings that Sophie tried to focus on, but her mind was too fixated on other words. Heat licked across her skin and smoke choked her lungs while the Neverseen moved forward, their black cloaks gone, disguises abandoned. Sophie stumbled backward, scrambling closer to her friends as a cage of neon yellow flames erupted all around them. In this game-changing fourth book in the Keeper of the Lost Cities series, Sophie must question everything to find a truth that will either save her world-or shatter it. And trusting the wrong person could prove deadly. Sophie and her friends fight with everything they have-with new allies joining them-but every choice has consequences. And as they settle into their new lives, they uncover secrets bigger than anything they’d imagined.īut their enemies are far from done, and they unleash a terrifying plague that threatens the safety of an entire species. They still have doubts about the shadowy organization, but the only way to find answers is to start working with them.

Her closest friends from the Lost Cities have gone with her to join the Black Swan. Sophie Foster is on the run-but at least she’s not alone. Trusting the wrong person could prove deadly. They still have doubts about the shady organization, but the only way to find answers is to start working with them.

Sophie Foster is on the run–but at least she's not alone. They are surrounded by water and Linh seems to be controlling and planning to flood the city of Ravagog.

The cover shows Sophie, Keefe, and Biana under large arches in Ravagog, and disguised as members of the Neverseen.
