The third instalment of Cogman's Invisible Library series did not disappoint, with familiar characters in unfamiliar situations, new locations and difficult choices to be made throughout. My only complaint with the second book (The Masked City) was that I felt the ending was a little rushed, and I worried a little that this would be the case once again, but I was very pleasantly put at ease with this book's final chapters in that respect - although the ending happens at what might be considered a whirlwind pace, it was not rushed but just right. I preordered the fourth of the series before I'd even opened the third and don't regret the decision at all!