CHAPTER FIFTEENMr. Field’s troubled face cleared. A faint flicker of amusement disturbed the cold slate blue of his eyes. “You gave me quite a turn, Inspector,” he said pleasantly. Bull’s face seldom showed emotion of any sort. He was one of those fortunate people who feel no responsibility about their theories being infallibly correct. If Mr. Field expected him to be disconcerted when he found the contents of the safe undisturbed, he was wrong. Bull examined the neatly arranged trays of exquisitely mounted stones, and unwrapped several costly ornaments. One diamond and emerald tiara along was worth Bull’s income for ten years, even before deducting the tax. He closed the door of the safe and spun the knobs into place. Now that one of his theories was apparently disproved, he wasted no

