Voices of the DeadBrilliantly conceived, fiendishly plotted Mick Herron The immersive world of Ambrose Parry just gets better and better Jess Kidd Edinburgh, 1853. In a city of science, discovery can be deadly . . . In a time of unprecedented scientific innovation, the public's appetite for wonder has seen a resurgence of interest in mesmerism, spiritualism, and other unexplained phenomena. Dr Will Raven is wary of the shadowlands that lie between progress and