ten o'clock
For myself , I intended to drop into the pass with my detachment when the Navajo rear had passed , deploy , and bag the whole party and the booty . It was a long and tiresome wait before the raiders appeared . The men had been told that they might sleep , and many of them had availed themselves of the permission . The moon rose soon after ten o'clock , and made our surroundings plainly visible in the rarefied atmosphere peculiar to the arid region of the plains and Rockies . I sat on a bowlder and watched through the tedious hours until three o'clock , when Corporal Frank approached from the direction of the place where his brother was sleeping . `` What sound is that , Mr. Duncan ? '' he whispered .