In 1920s' London, a chilling murder takes place on a quiet street of respectable citizens - a solicitor brutally murdered in his own home. When the Metropolitan Police's investigators hit a dead end, the Chief Constable puts out a call for help to the incomparable detective, Silvester Locke-Croft. With unrivalled talents, a razor-sharp mind, and a memory that rivals an elephant's, Locke-Croft takes on the case that has confounded Scotland Yard.As Locke-Croft peels back the layers of secrecy in the crime-ridden streets, hidden evidence emerges, illuminating the incompetence of his counterparts. But corruption and collusion lurk around every corner, making the pursuit of justice a perilous journey. Locke-Croft's forensic acumen and unyielding determination lead him down a path of unexpected twists and turns, culminating in a surprising revelation that exposes the true face of evil.Step into the shadowed world of 1920s London, where opulence clashes with poverty, and sinister secrets fester beneath a veneer of respectability. 'The Test' is a gripping historical murder mystery that will keep you guessing until the final revelation, as you join the enigmatic Locke-Croft on his relentless quest for truth and justice.