And yet in the glaring sunshine of that May morning, after they had unsaddled at Moreno's, after the sergeant, wearied with the vigils of two successive nights, had gone to sleep in the coolest shade he could find, there came riding across the sun-baked, cactus-dotted plain at the west a young man who had the features of the American and the grave, courteous bearing of the Mexican. "My name is Harvey," said he. "My sisters, who have been in San Francisco at school, are with me on the way to visit our parents in Tucson. Father was to have met us at the Bend with relays of mules. We have waited forty-eight hours and can wait no longer. For God's sake let half a dozen of your men ride out and escort them down here. There is no doubt in the world the Apaches are in the mountains on both sides, and I'm trembling for fear they've already found our camp. None of my party dared make the ride, so I had to come." What was Plummer to do? He didn't want to rouse the sergeant. This wasn't going back to Ceralvo's, but riding northward to the rescue of imperilled beauty. He simply couldn't refuse, especially when Donovan and others were eager to go. From Mr. Harvey he learned that his father had married into an old Spanish Mexican family at Havana, had been induced by them to take charge of certain business in Matamoras, and that long afterwards he had removed to Guaymas and thence to Tucson. The children had been educated at San Francisco, and the sisters, now seventeen and fifteen years of age respectively, were soon to go to Cuba to visit relatives of their mother, but were determined once more to see the quaint old home at Tucson before so doing; hence this journey under his charge. The story seemed straight enough. Plummer had never yet been to Tucson, but at Drum Barracks and Wilmington he had often heard of the Harveys, and Donovan swore he knew them all by sight, especially the old man. The matter was settled before Plummer really knew whether to take the responsibility or not, and the cavalry corporal with five men rode back into the fiery heat of the Arizona day and was miles away towards the Gila before Feeny awoke to a realizing sense of what had happened. Then he came out and blasphemed. There in that wretched little green safe were locked up thousands enough of dollars to tempt all the outlawry of the Occident to any deed of desperation that might lead to the capture of the booty, and with Donovan and his party away Feeny saw he had but half a dozen men for defence.