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. And as they settle into their new lives, they uncover secrets far bigger than anything they’d imagined. But their enemies are far from done, and unleash a terrifying plague that threatens the safety of an entire species. Sophie and her friends fight with everything they have—with new allies joining them—but every choice has consequences. And trusting the wrong person could prove deadly. 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.

The dragons call out, and the ratatoskas tell of murder. Come with us now. There is justice to be done. Return to the magic of the Archipelago... The Poisoned King is the dazzling second book in Katherine Rundell's epic and bestselling Impossible Creatures series.'There was Tolkien, there is Pullman and now there is Katherine Rundell' – Michael MorpurgoWhen Christopher Forrester is unexpectedly woken by a miniature dragon chewing on his face, his heart leaps for joy. For months he's dreamed of returning to the Archipelago – the secret islands where all the creatures of myth still live. But he did not know it would involve a rescue mission on the back of a sphinx, or a plan to enter a dragon's lair. Nor did he imagine it would involve a girl with a flock of birds at her side, a new-hatched chick in her pocket and a ravenous hunger for justice...The unmissable sequel to Impossible Creatures, WINNER of the Waterstones Book of the Year, British Book Awards Children's Book of the Year, Foyles Children's Book of the Year and the Books Are My Bag Readers Award'A book stuffed full of fantastical, magical delight' – Cressida Cowell on Impossible Creatures'Readers will seize this with delight' – Philip Pullman on Impossible Creatures'A masterpiece to rival Tolkien' – Daily Telegraph on Impossible Creatures'Every sentence sparkles ... Magnificent' – The Times on Impossible Creatures