I've continued to enjoy Stross's Laundry series as Bob Howard, computational demonaloigist finds himself learning more of the Laundry's dirty secrets with each book. Bob has been changed after the events in The Fuller Memorandumand his new boss has decided to give him a field "stress test" by putting him in charge of two "external assets".

I have to say I didn't enjoy this book quite as much as the previous books in the series because a large section of the book moves away from the first person narrative of the earlier novels and is written from the point of view of two new characters. While these points of view make sense in the context of the story I nevertheless found them distracting as I kept on wanting to get back to my favorite character - Bob - for his story. This is always the risk that writers run when they split stories up over various characters...there's always one you want to know more about than the others and this happened to me with this book.