Barbara Fielding used to be a typical young woman of the roaring twenties, living from dance to dance, from party to party, in search of nothing but the next exciting flirtation. But that's all in the past. For Barbara is now that rarest of creatures - a female detective for the Post Office's Investigation Department. When a murder is discovered within the headquarters of the Department itself, she is tasked with going undercover to investigate the crime. Teamig up with an unexpected ally, Barabra is soon hot on the trail of a gang of ruthless mail robbers, travelling from Brittany to Tunisia, from Malta to Italy in an attempt to foil their diabolical blackmail plot and unmask the traitor within the Post Office's ranks...
Originally published in 1927, this is a vintage thriller from the golden age of detection.