In a grimy flat in Glasgow, a homemade bomb explodes, leaving few remains to identify its maker. Detective Harry McCoy knows in his gut that there'll be more to follow. The hunt for a missing sailor from the local US naval base leads him to the secretive group behind the bomb, and their disturbing, dominating leader. If the city is to survive the next explosion, it'll take everything McCoy's got. The fourth dark and gritty Harry McCoy thriller.