Dr. D---- was no coward by any means, but it took all Scot's eloquence and persuasiveness to induce him to consent to hazard a daylight journey through to Sumner, for he well knew its dangers. Scarcely a week passed without news of some fearful massacre or desperate defence. But, stirred by Scot's own heroism or perhaps tempted by the heavy fee to be earned, he consented. Having breakfasted and gotten the best team in town hitched to a light buckboard, Scot and the doctor were rolling away into the south on the Sumner trail before seven o'clock, over long stretches of level grassy mesa and past tall black volcanic buttes. Driving on without interruption or incident, shortly after noon they approached the head of the Arroyo de los Enteros, down which the trail descended to the lower levels of the great Pecos Valley. Enteros Canon is about three miles long, rarely more than two hundred yards wide, its sides rocky, precipitous, and heavily timbered, through which wound the wagon trail, exposed at every point to a perfect ambuscade. It was the most dreaded stretch of the Vegas-Sumner road, but Scot and the doctor drew near it without a misgiving, for no sign of the savage enemy had they seen. Just before reaching the head of the canon, the road wound round a high butte. Bowling rapidly along, Scot half dozing with fatigue, the doctor, unused to the plains, alert and watchful, they suddenly turned the hill and came out upon the immediate head of the canon, when suddenly the doctor cried, seizing Scot's arm: "Good God, Scott, look! For God's sake, look!" And it was time. There on either hand, to their right and to their left, tied by their lariats to drooping _pinon_ bough, stood fifty or sixty Navajo ponies. The ponies were bridled and saddled. Upon some were tied lances and on others arms. All were dripping with sweat and heaving of flank, their knife-marked ears drooping with fatigue; not more than five minutes could have elapsed since their murderous riders had left them. Apparently it was an ambush laid for them, and they were already surrounded. Even the cool Scot shook himself in surprise to find that he was still alive. Overcome with terror, the doctor cried: "Turn, Scot! Turn, for Heaven's sake! It's our only chance to pull for Vegas." But Scot had been reflecting. With wits sharpened by a thousand perils and trained in scores of desperate encounters, he answered: "Doc, you're wrong; dead wrong. We're safe as if we were in Fort Union. If they were laying for us we'd be dead now. No, they are after bigger game. They have sighted a big freight outfit coming up from the Pecos, and are laying for that in the canon. We can slide through without seeing a buck or hearing a shot. We'll go right on down Entoros, old boy." "Scot, you're crazy," said the doctor. "I will not go a step. Let's run for Vegas. Any instant we may be attacked. Why, damn your fool soul, they've no doubt got a bead on us this minute."