The Untold Story (Broché)

Will a librarian do anything for her library ? Librarian spy Irene is heading into danger, and not for the first time. But could this be her last assignment ? She's been tasked with a high-stakes solo mission to eliminate an old enemy — and failure is not an option. Yet, even more troubling news emerges. Multiple worlds are disappearing and the Library may be involved. Determined to uncover the truth behind these dangerous whispers, Irene and friends descend into the Library's unplumbed depths.
And there they unearth an old and terrible secret that transforms everything Irene thought she knew. This knowledge could change her world. But can she survive long enough to share it ?