nine o’clock
`` That 's my business . '' `` Maybe , but it is no affair of yours to interfere with private affairs of mine , Detective Sergeant . See here , there is no lady in these chambers . Secondly , I have an appointment at nine o'clock , and you are detaining me . '' `` What 's more , '' answered Stokes , who had now quite lost his temper , `` I intend to go on detaining you until I have searched these chambers and searched them thoroughly . '' Nicol Brinn glanced at his watch . `` If I leave in five minutes , I 'll be in good time , '' he said .