The stone which Messrs. Tarkington and Oxley had thrown into the turbid waters of the British Police Administration produced ripples which, like other similar wave forms, spread slowly away from their point of disturbance. One of these ripples, penetrating into the grim fastness of the Criminal Investigation Department of New Scotland Yard, had the effect of ringing the bell of a telephone on the desk of Detective Inspector Joseph French and of causing that zealous and efficient officer, when he had duly applied his ear to the instrument, to leave his seat and proceed without loss of time to the room of his immediate superior.
“Ah, French,” Chief Inspector Mitchell remarked on his entry. “You should be about through with that Kensington case, I fancy?”
“Just finished with it, sir,” Frenc
