ten o'clock
Each assented , with apparent deep satisfaction . `` Now , '' said he briskly , `` Munroe , you go to the lower trail , near the big oak at the second crossing . Wait there . If the express messengers have not passed by to-morrow morning at ten o'clock , return here . If they do come by , stop them , and tell them to proceed by the cut-off to the place they know of , and to wait there for me . Understand ? '' To each of the other four men he assigned a different watching on other trails , giving them the same instructions .