six o'clock
Power is coming into my study to tea to-night ; wo n't you join us as in old days ? '' `` I will , Walter ; but can the ghost of old days be called to life ? '' `` Perhaps not ; but the young present , which is no ghost , shall replace the old past , Ken . At six o'clock , mind . Good-bye . '' `` Do n't go yet : do stay a little . It is a greater pleasure than I can tell you to see you here again , Walter .