The Masked City

Librarian-spy Irene's assistant has been kidnapped by the Fae - a fairy faction who will stop at nothing to cause utter chaos. The Masked City is the second entry in the Invisible Library series from Genevieve Cogman. Irene is working undercover when disaster strikes. Her assistant, Kai, is snatched away by the dangerous Fae faction, unveiling his secret identity. Kai is a dragon prince - with this act of aggression, the Fae are determined to trigger a war that will hurl all dimensions into havoc.
With the stakes higher than ever before, Irene must navigate a treacherous path into the heart of enemy territory - a dark, alternate Venice under the grim control of the Fae. To prevent the Fae from triggering armageddon, she must find and rescue Kai. She will be forced to blackmail, fight and make an unlikely alliance - or face death .