about eleven o'clock
Do you wish us to do something similar ? '' `` Not at the moment , '' replied Robert Cairn , smiling slightly . `` I merely want the address of your client . '' `` I do not know that I can give you that , '' replied the girl doubtfully , `` but he will be here about eleven o'clock for proofs , if you wish to see him . '' `` I wonder if I can confide in you , '' said Robert Cairn , looking the girl frankly in the eyes . She seemed rather confused . `` I hope there is nothing wrong , '' she murmured .