169 Probably, at this minute, too, he hears the sounds below of Mr. Wells and John leaving the boudoir. 
Mr. Wells and John are leaving the boudoir at the moment.
mnli hypothesis: Mr. Wells and John are leaving the boudoir at the moment. premise: 169 Probably, at this minute, too, he hears the sounds below of Mr. Wells and John leaving the boudoir. 