"Suppose you were taking a walk in the dense fog of a London afternoon. Suppose a beautiful girl came running desperately toward you, the sound of her pursuers echoing close behind her. Sinner on saint? Not Mr. Pinkerton! `In here quick!' he whispered. And then it all began—the corpse with the knife in his back, the disappearance of the fabulous Hawtrey diamond, the strange events in the sinister house of Portman Square. It was a case for Inspector Bull of Scotland Yard and he solved it brilliantly-with the help of Mr. Pinkerton, of course. This is a mystery with the impact of a pistol shot, by an author who knows how to deliver thrills and chills the way you like them.
