"To put it briefly, the case before us is this. A man on trial for his life is shot dead in the dock actually while sentence of death is being passed upon him."
Edward Sheers is on trial, accused of murdering his friend, the soldier Watson Biggs. Sheers swears his innocence, a plea which hangs on the evidence of one John Porter. Yet, not only is Porter nowhere to be found but, to the astonishment of the crowd assembled at Bancaster Assizes, Sheers seems unwilling to let him be sought out. But further sensation awaits - for just as the prisoner is being sentenced to death, a woman's cry rings through the court, and Sheers is shot dead.
Who committed the murder? What happened to the weapon? And who was the mysterious woman whose voice echoed through the courtroom moments before tragedy struck? It is left to an enterprising journalist and Biggs's superior officer to unravel the intrigue and discover the truth about Sheers - and his murderer.
Originally published in 1932, this is a classic British murder mystery from the "Golden Age" of crime fiction.