Then came an adventure which partly helped and partly hindered his plans. The train was overtaken by a detachment of the Fifth United States Cavalry, commanded by Major John Robinson, pushing for California. Of course Sergeant Meyer reported himself and Kelly to the Major, and of course the Major ordered them to join his party as far as Fort Yuma. This deprived Clara of her trusted protectors; but on the other hand, she threatened to take advantage of the escort of Robinson for the rest of her journey; and the mere mention of this at once brought Coronado on his soul's marrow-bones. He swore by the heaven above, by all the saints and angels, by the throne of the Virgin Mary, by every sacred object he could think of, that not another word of love should pass his lips during the journey, that he would live the life of a dead man, etc. Overcome by his pleadings, and by the remonstrances of Aunt Maria, who did not want to have her favorite driven to commit suicide, Clara agreed to continue with the train. After this scene followed days of hot travelling over hard, gravelly plains, thinly coated with grass and dotted with cacti, mezquit trees, the leafless palo verde, and the greasewood bush. Here and there towered that giant cactus, the saguarra, a fluted shaft, thirty, forty, and even sixty feet high, with a coronet of richly-colored flowers, the whole fabric as splendid as a Corinthian column. Prickly pears, each one large enough to make a thicket, abounded. Through the scorching sunshine ran scorpions and lizards, pursued by enormous rattlesnakes. During the days the heat ranged from 100 to 115 deg. in the shade, while the nights were swept by winds as parching as the breath of an oven. The distant mountains glared at the eye like metals brought to a white heat. Not seldom they passed horses, mules, cattle, and sheep, which had perished in this terrible transit and been turned to mummies by the dry air and baking sun. Some of these carcasses, having been set on their legs by passing travellers, stood upright, staring with blind eyeballs, grinning through dried lips, mockeries of life, statues of death. In spite of these hardships and horrors, Clara kept up her courage and was almost cheerful; for in the first place Coronado had ceased his terrifying attentions, and in the second place they were nearing Cactus Pass, where she hoped to meet Thurstane. When love has not a foot of certainty to stand upon, it can take wing and soar through the incredible. The idea that they two, divided hundreds of miles back, should come together at a given point by pure accident, was obviously absurd. Yet Clara could trust to the chance and live for it.