owed him her life for the brilliant career she had ruined. It made you sometimes almost want to laugh--insanely. I used to lie awake at night and pray whatever there was to kill him, and do it quickly. I would have turned back, but I felt that every day I could keep him away from Los Pinos was a day gained for Mrs. Whitney. He was a dangerous maniac, too. The first day he behaved himself fairly well, but the second, after supper, when we had cleaned up, he began to fumble through the packs, and finally produced a bottle of brandy. "'Fine camping stuff!' he announced. 'Lots of results for very little weight. Have some?' "'Are you going to drink that?' I asked. "'Oh, go to the devil!' he snapped. 'I've been out as much as you have.' I didn't argue with him further; I hoped if he drank enough the sun would get him. But the third night he upset the water-kegs, two of them. He had been carrying on some sort of weird celebration by himself, and finally staggered out into the desert, singing at the top of his lungs, and the first thing I knew he was down among the kegs, rolling over and over, and kicking right and left. The one that was open was gone; another he kicked the plug out of, but I managed to save about a quarter of its contents. The next morning I spoke to him about it. He blinked his red eyes and chuckled. "'Poor sort of stuff, anyway,' he said. "'Yes,' I agreed; 'but without it you would blow out like a candle in a dust storm.' After that we didn't speak to each other except when it was necessary. "We were in the foot-hills of the Voodoos by now, and the next day we got into the mountains themselves--great, bare ragged peaks, black and red and dirty yellow, like the cooled-off slake of a furnace. Every now and then a dry gully came down from nowheres; and the only human thing one could see was occasionally, on the sides of one of these, a shivering, miserable, half-dead piñon--nothing but that, and the steel-blue sky overhead, and the desert behind us, shimmering like a lake of salt. It was hot--good Lord! The horn of your saddle burned your hand. That night we camped in a canyon, and the next day went still higher up, following the course of a rutted stream that probably ran water once in a year. Whitney wanted to turn east, and it was all a toss-up to me; the place looked unlikely enough, anyway, although you never can tell. I had settled into the monotony of the trip by now and didn't much care how long we stayed out. One day was like another--hot little swirls of dust, sweat of mules, and great black cliffs; and the nights came and went like the passing of a sponge over a fevered face. On the sixth day the tragedy happened. It was toward dusk, and one of the mules, the one that carried the water, fell over a cliff.