A mysterious archive. A powerful enemy. And a cunning plan. The Dark Archive is the seventh book in the Invisible Library series by Genevieve Cogman.

Danger is part of the day job for a librarian-spy. So Irene’s hoping for a relaxing weekend break in Guernsey, on the tail of a rare book. That's when her jaunt takes a dire turn.

Irene is almost assassinated, Kai is poisoned and Vale barely escapes with his life. Then the attacks continue in London – targeting those connected with the Fae-dragon peace treaty. Irene knows she must stop the plot before the treaty fails. Or someone dies.

But when Irene and friends are trapped underground, in a secret archive, things don’t look so good. Then an old enemy demands vengeance, and a shocking secret is revealed. Can Irene really seize victory from chaos?

**The fantastical journey continues in The Untold Story, the eighth book in the Invisible Library series.

Praise for the series:**

'I absolutely loved this' – N. K. Jemisin, author of The Fifth Season

'Irene is a great heroine: fiery, resourceful and no one's fool' – The Guardian

'Cogman keeps upping the ante on this delightful series!' – Charles Stross, author of the Merchant Princes series