In the second book in the Keeper of the Lost Cities series, Sophie must uncover hidden memories as long-buried secrets rise to the surface . . . Sophie Foster thought she was safe. Her life finally seems to be coming together. She's settled into her home at Havenfield, surrounded by friends, and using her unique telepathic abilities to train Silveny - the first female alicorn ever seen in the Lost Cities. But Sophie's kidnappers are still out there,...

Sophie Foster is on the run - but at least she's not alone. Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy organization, but the only way to find answers is to start working with them. As they settle into their new lives, they uncover secrets far bigger than anything they'd imagined. But their enemies are far from done, unleashing a terrifying plague that threatens the safety...

Sophie Foster is still struggling. Grieving. Scrambling. But she knows one thing: she will not be defeated. The Neverseen have had their victories--but the battle is far from over. It's time to change tactics. Make sacrifices. Reexamine everything. Maybe even time for Sophie to trust her enemies. All paths lead to Nightfall--an ominous door to an even more ominous place--and Sophie and her friends strike a dangerous bargain to get there. But nothing...

"Sophie Foster wants answers. But after a lifetime of lies, sometimes the truth is the most dangerous discovery. Even the smallest secret comes with terrifying new responsibilities. And Sophie's not the only one with blank spots in her past, or mysteries surrounding her family. She and her friends are part of something much bigger than they imagined--and their roles have already been chosen for them. Every clue drags them deeper into the conspiracy....