The Infernals by John Connolly or Hell's Bells to the folks in the UK. It's the second book; first was The Gates, it's very fun to read and has a unique feel to it. The Infernals seems to have the same feel but doesn't have the same depth to it. Hope my opinion changes. It's great for something lite to read.
p.s. It was first released in the UK as Hell's Bells then later released in the US as The Infernals don't excatly understand why but thought you would like to know.