five o'clock
`` I hope , '' said Ned drowsily as they were dropping off to sleep , `` that we wo n't have any Jack Jellups or thieving Utes to-night . My nerves need rest . '' Then the boys got eight good hours of health and strength giving sleep in the tonic air of the Arizona Mountains . At five o'clock Ned and Alan were astir . With regrets that they were not at Camp Eagle for a plunge in the cool mountain lake , they prepared another hot meal , ate it , and boarded the Cibola . The balloon had now been inflated thirty-eight hours and was noticeably showing the loss of its gas . While the top of the bag was yet round and firm in the heat of the sun the lower sides had become a trifle flabby as the cool evening had come on .