22/69 "It is entirely a question of barometric pressure." Lestrade looked startled. "I do not quite follow," he said. No wind, and not a cloud in the sky. I have a caseful of cigarettes here which need smoking, and the sofa is very much superior to the usual country hotel abomination. I do not think that it is probable that I shall use the carriage to-night." Lestrade laughed indulgently. |