midnight
But you will not move around much . Make no noise and be watchful . That is all we can do . '' It was decided that Ned and Walter should take the early trick ; Tad and Stacy Brown going out after midnight . The herders were already attending to their duties . And now Mr. Simms and the foreman having given their orders , the reserve force moved out one at a time until all had disappeared in the darkness . A signal had been agreed upon , so that they might recognize each other in the dark .