Nora Britton’s fatal fall from the scaffold she was working on is thought accidental — until it transpires she was the subject of death threats. Shenstone’s sleuthing takes him from slum to mansion, from speakeasy to laboratory to artist’s studio. The dead Nora becomes his obsession. His list of suspects keeps lengthening as he discovers in his city unexpectedly virulent religious and ethnic hatreds. His toughness, brains, and marksmanship will all be tested in his fight to do Nora justice.