But just then the reservoir of the Wingdam ditch came in view on the hill beside him, and with it a revelation that in a twinkling displaced Mrs. Markle, and seemed almost to change the man's entire nature! What was it? Apparently nothing to the eye of the ordinary traveller. The dam was full, and through a cut-off the overplus water was escaping with a roar. Nothing more? Yes--to an experienced eye the escaping water was not abating the quantity in the dam. Was that all? No! Halfway down the rudely constructed _adobe_ bank of the dam, the water was slowly oozing and trickling through a slowly-widening crevice, over the rocks above the gorge and stage road below! The wall of the dam was giving way! To tear off coat and all impeding garments, to leap from rock to rock, and boulder to boulder, hanging on by slippery chimisal and the decayed roots of trees; to reach at the risk of life and limb the cañon below, and then to run at the highest speed to warn the incoming stage of the danger before it should enter the narrow gorge, was only the resolve and action of a brave man. But to do this without the smallest waste of strength that ought to be preserved, to do this with the greatest economy of force, to do this with the agility and skill of a mountaineer, and the reserved power of a giant; to do this with a will so simple, direct, and unhesitating, that the action appeared to have been planned and rehearsed days before, instead of being the resolution of the instant,--this belonged to Gabriel Conroy! And to have seen him settle into a long swinging trot, and to have observed his calm, grave, earnest, but unexcited face, and quiet, steadfast eye, you would have believed him some healthy giant simply exercising himself.