twenty minutes to nine
I shall not be later than ten-fifteen . I intend to put up a ` Busy ' sign tonight so as to keep the girls out of here before I start . They know better than to try to get by it , too . '' At precisely twenty minutes to nine that evening Leslie took the `` Busy '' placard from her door and locking it proceeded to the rendezvous . She had put on a long dark motor coat and a black velour sports hat . The instant she had left the Hall 's premises behind her she pulled the hat low over her face and broke into a run . An expert tennis player , she was swift and nimble of foot .