«The clerk said the men remained in their room all day, apart from one occasion in the late morning when Schulz and the giant, as he called Kowalski, left for half an hour? Also, while you're about it, see if you can find out from the servants if there was any unusual activity around the house after Brownley left and...
Say, wait a minute, Harry interrupted, his forehead creased in a frown, maybe I know more than I thought I did. Mason raised inquiring eyebrows.