Six o'clock
Not for two or three centuries can the turret chamber at Kirkburn have heard so much merriment . The afternoon passed in this course of instruction . Merton was a fairly good mimic , and Logan felt at last that he could not readily be detected for an Englishman . Six o'clock had scarcely struck when Mrs. Bower 's grandson was ushered into the bedroom . The exchange of clothes took place , Merton dressing as the young Bower undressed . The detectives , who had found nothing , were being entertained by Mrs. Bower at dinner . ` I know how the trap in the secret passage is worked , ' said Merton , ` but you keep them hunting for it . '