I love this book, read it a few years ago. I'd recommend it if you like Gloriana-style Moorcock / Peake. It's set in a similar alternate fictional period, and is about the British secret service sending some agents into Europe. It doesn't sound very strange, but the agents all transform themselves into physical objects and there are parts of the story told from the perspective of those objects. It's beautiful stuff. The author spent 15 years writing it.