A prominent doctor is found murdered in a secret room in his own home in this classic mystery. Upper Square is the last stronghold of snobbery in Abbot's Caldicott, a dying little metropolis in East Anglia, and the remnants of queer old families re-side there. Doctor Beharrell, a promi-nent physician, is found murdered in a secret room in his home at Bank House, in the square, and Superintendent Littlejohn, warned before it has been discovered that...