Regular readers of Natasha Pulley will find this novel to be least like any of her others. While there are some winks to her other universes (a pet octopus, a lighthouse), this may be her most grim. The alternate realities explored by her previous characters exist only in the author’s imagination. Here it is a battle of conflicting realities — the one which is killing people covertly and the one which the government wishes to portray.