Tanner Mirabel was a security specialist who never made a mistake - until the day a young woman in his care was blown away during an attack by a vengeful young postmortal. Tanner's pursuit of the murderer takes him across the universe from his home planet of Sky's Edge to Chasm City.Tanner Mirabel was a security specialist who never made a mistake - until the day a young woman in his care was blown away during an attack by a vengeful young postmortal. Tanner's pursuit of the murderer takes him across the universe from his home planet of Sky's Edge to Chasm City. Winner of British Science Fiction Association Award 2002.