four o'clock
said the doctor , who also evidently considered it a curious coincidence that Gilks should be taken unwell the very morning when his presence was required in the library ; `` he had better have come . You say he is to be up after dinner ? '' `` Yes , sir . '' `` Then let him know he is to come here at four o'clock , and you , Silk , come too at that hour . '' Silk , who had evidently screwed himself up for the present interview , looked disappointed . `` I should like just to say , sir -- '' began he , with a glance at Riddell . But the doctor interrupted .