eight o'clock in the morning
She sat her pony until she had carefully examined it all the way around . `` All clear , so far as I can see , Mr. Lang , '' she said , riding up to him . Hi nodded , but made no comment , for he could read the desert better than could Grace Harlowe with her powerful binoculars . It was eight o'clock in the morning when finally they turned into Forty-Mile Canyon and began picking their way over the rough ground . The desert heat followed them until the walls of the canyon rose sheer for several hundred feet , and they came to a cascade that , falling into the canyon , became a mountain brook . Here there was a marked change in the temperature . `` Dismount and water the horses ; then we will press on , '' directed the guide .