MixedThe GuardianThe opening chapters are so effective that it takes ages to settle into the second section, which is set in the post-apocalyptic world left by the inevitable release of the virus. The action had been fast and violent, with helicopters and bombs; in part two, there's a new cast of characters living a century later who plod round on horses and get excited if they catch a rabbit. The pace does pick up, though, and Cronin's postviral world is inventive and interesting … the only character who appears in both sections of the novel is a six-year-old girl called Amy (or The Girl from Nowhere, as Cronin has it). She should be fascinating – Amy possesses ill-defined special powers and has kept her humanity despite viral infection – but readers have no access to her interior life and she barely speaks.