A unique, imaginative, intriguing and captivating series.
Am absolutely loving reading this series, once you begin you will be reading until the end. It gets you hooked and each book has been unputdownable. I definitely would recommend reading The Great Library Series by Rachel Caine.
This is the fourth book in the series and if you want to understand what is happening in this book then it's best to start from the beginning of the series; Book 1 is 'Ink and Bone' Book 2 is 'Paper and Fire' Book 3 is 'Ash and Quill'