"The unforgettable characters from Ink and Bone and Paper and Fire unite to save the Great Library of Alexandria from itself in this electrifying adventure in the New York Times bestselling series. Hoarding all the knowledge of the world, the Great Library jealousy guards its secrets. But now a group of rebels poses a dangerous threat to its tyranny. Jess Brightwell and his band of exiles have fled London, only to find themselves imprisoned in Philadelphia,...

The corrupt leadership of the Great Library has fallen. But with the Archivist plotting his return to power, and the Library under siege from outside empires and kingdoms, its future is uncertain. Jess Brightwell and his friends must come together as never before, to forge a new future for the Great Library ... or see everything it stood for crumble.