Completely different from the first three volumes

A suicide in the subway, a stolen occult book and the death of the man who could have stolen the book, Peter Grant lead to an old and threatened by demolition residential block which seems to hide more than just a secret, and at the same time once more to track down the infamous Faceless Man, who followed up his own sinister plans.

Unlike in the previous volumes, this time not a single case, determines what happens, but several loosely connected scenes are strung together, all of which result in a specific direction.
Here comes through this building, in my view never swing in the story, but buggers Grant leisurely from one place to another, with the exception of the cliffhanger finale practically not a single real voltage peak is achieved.

The characters are limited primarily to the core group, primarily Peter and Lesley themselves - especially where Lesley's impact on others and their dealing with her injury be shown very convincing and even comes Nightingale just before rather on the edge. Otherwise, we will meet in short scenes again Dr. Walid, Peter's parents, Molly and other already known fairies, but they all take little impact on the story.
A little bogged down Aaronovitch also repeatedly similar descriptions of workouts the two "sorcerers' apprentices" or about another festivity of the fairies, the not very different in the previous volumes of the mentioned.

Although the book for this reason it has some length in my eyes, it reads in large parts still pleasant liquid, albeit not quite as amusing as his predecessors. He is replaced at the end a rather serious tone in the story and makes the surprising end curious about the sequel.

From me therefore four stars with the hope that the next taping something more ride again.