London 1752
An early morning call from Bow Street magistrate John Fielding summons Will Archer to where two women lie dead.
But, as Will discovers, this is no simple murder. It is a crime aimed at one of the highest in the land and which could threaten national security.
Ordered to go undercover, Will enters a London underworld of lawlessness and vice where innocents are corrupted and criminals plot violence.
When a desperate plea for help threatens to risk everything, Will is forced to choose between instinct and duty and has to come to terms with his feelings in unexpected ways.
In this latest book in the series Colin Eston once again captures 18th Century London in all its excitement and squalor – a place where loyalty and friendship must fight to overcome villainy and danger.