twelve
o'clock
`` That 's all right , '' said the Governor , `` and serves our purpose well . Archie , you and Leary take the launch and carry the mail over to Heart o ' Dreams . The tug will be within call in case you need help . At twelve o'clock meet me about a quarter of a mile this side of Carey 's barricade ; Leary 's got the place spotted so he can find it in the dark . Use a canoe ; no noise and no lights . Hurry along but do n't blow up the launch . '' `` I have a surprise for you , '' said Ruth when Archie delivered the mail at the camp office .