The fifth novel in the CSI Reilly Steel forensic crime thriller series. CSI Reilly Steel series: #0 CRIME SCENE #1 TABOO #2 INFERNO #3 HIDDEN #4 THE WATCHED #5 TRACE #6 AFTERMATH Back at the helm of the Garda Forensic Unit after a short hiatus in the US, Reilly Steel is thrust straight into a series of complicated Dublin murders at which the killer leaves minuscule forensic trace evidence. The investigating team discover that the victims have been targeted because of one worryingly common trait, and need to outsmart the killer before he makes his next move. But Reilly is preoccupied, not only by new developments in a decades old missing person case, but also her own feelings of disconnect since her return from the US ... Can she get back on top of her game to track down the killer in time?