In the seamy Hong Bay district of Hong Kong, crimes of every shape and size are commonplace. But not letter bombs. Not till Mr Leung and Mr Ramaswamy are successively spread bloodily over the office walls. When Detective Inspector Spencer narrowly escapes becoming victim number 3, the Yellowthread Street police are grimly determined to track down the culprit - before the Special Branch get to him. But unless they can find the link between...