Rosa Epton, Underwood's likable London lawyer, is asked by attractive acquaintance Philip Arne to defend his ne'er-do-well brother Francis on a minor charge. And Rosa gets Francis off. But she remains involved when Philip is murdered and Francis becomes the prime suspect. Other possibilities: Philip's landlord, Shiv Kapur, an overly suave Indian who worked with Philip at a tiny, shady charity; and Colonel Arne, Francis and Philip's taciturn, embittered father. Rosa, convinced of Francis' innocence, is handed a crucial clue, follows it up, and resolves the case in her own way--but there's too little courtroom action (Underwood's forte) and too much contrivance in the windup. Still, with intriguing glimpses into a London nether-world and some well-drawn minor characters, this is middling Underwood overall--and that's not bad.