twelve o'clock
I do not know as yet whether we must go or not ; but we must be ready for it . Then take the valises and the horses down to the meadow , through the garden , and tie all up there , under the shadow of the trees from where you can see the house . And you must remain there yourself till twelve o'clock to-night . At twelve o'clock , as near as I can tell it , if all is quiet I will show a light three times from the garret window ; and when you see that you can come back again and go to bed . If they are after us at all they will come when they think we are all asleep ; and it will be before twelve o'clock . Do you understand it all ? '' -LRB- I was very glib in all this ; for I had thought it out all beforehand , if ever there should be an alarm of this kind . -RRB-