The Invisible Library by Genevieve Cogman

The Invisible Library (The Invisible Library series Book 1) by [Genevieve Cogman]

The Invisible Library is a mystery of a missing book, an extraordinary edition of The Grimm Brothers’ Fairy Tales. The book, which is a unique collector’s item, has been stolen and its owner murdered. Irene (a librarian-cum-spy) and her assistant, Kai, travel to Victorian London to search for the book.
Until this point, a potential reader would be justified in thinking this was yet another historical mystery. But Victorian London is only one of many versions of itself. Cogman’s world consists of many such alternatives. Each universe features an array of beings other than humans: vampires, fairies, shape-shifting dragons, to name just a few. Zeppelins fly overhead. Robotic caterpillars, remotely operated alligators, silverfish and all manner of bizarre creatures get in the way of the investigation. However, finding the book is a matter of life and death, and the librarian’s nemesis, Alberich will not hesitate to resort to trickery, murder and corruption to get his hands on the book. Ancient Language and magic are used, alongside more conventional methods, by all sides to defeat the competition. Alliances are formed slowly and mistrust has to be overcome in action.
I enjoyed the quest aspect of The Invisible Library and found the concepts of the many alternatives of real places and times very intriguing. The idea of magic being a by-product of destructive chaos is original and curious.
I would have liked Cogman to have perhaps fewer magical creatures, but to develop each of them in greater detail and give them more distinguishable features. As it is the vampires are not that different from the fairies, or indeed the dragons.
Overall, a pleasant fantasy read.