midnight
It 's no use to try it at all unless we can pass that door with reasonable quickness . All the evidence we shall get will be of an innocent social club-room downstairs . The gambling is all on the second floor , beyond this door , in a room without a window in it . Surely you 've heard of that famous gambling-room , with its perfect system of artificial ventilation and electric lighting that makes it rival noonday at midnight . And do n't tell me I 've got to get on the other side of the door by strategy , either . It is strategy-proof . The system of lookouts is perfect .