Kidnapped and taken to a huge, world-spanning library, Claire Mathis is shocked to discover the truth about her own life. Thrust into the heart of a battle for the library's fate, she quickly learns that the powerful Forbidders will stop at nothing in order to gain the one object they prize above all others. While the Forbidders wreak havoc, however, a great danger is edging closer. The darkness is reaching out across the void, threatening to destroy...