Right. First off, it does NOT rank alongside "His Dark Materials": get a grip, Guardian reviewer, do!
It's not a bad book exactly (it held my interest through some lengthy reading sessions) but it's... well, WHAT is it?! Starts off with an investigation into a murder and the perpetrator's subsequent death: I turned the page and we were in the land of the Sidhe in search of a magical artefact. What? How? Who? Hnhh? Don't even know! ?