About this time there came under my observation an incident that will illustrate Lobo's diabolic cunning. These wolves had at least one pursuit which was merely an amusement; it was stampeding and killing sheep, though they rarely ate them. The sheep are usually kept in flocks of from one thousand to three thousand under one or more shepherds. At night they are gathered in the most sheltered place available, and a herdsman sleeps on each side of the flock to give additional protection. Sheep are such senseless creatures that they are liable to be stampeded by the veriest trifle, but they have deeply ingrained in their nature one, and perhaps only one, strong weakness, namely, to follow their leader. And this the shepherds turn to good account by putting half a dozen goats in the flock of sheep. The latter recognize the superior intelligence of their bearded cousins, and when a night alarm occurs they crowd around them, and usually are thus saved from a stampede and are easily protected. But it was not always so. One night late in last November, two Perico shepherds were aroused by an onset of wolves. Their flocks huddled around the goats, which, being neither fools nor cowards, stood their ground and were bravely defiant; but alas for them, no common wolf was heading this attack. Old Lobo, the werewolf, knew as well as the shepherds that the goats were the moral force of the flock, so, hastily running over the backs of the densely packed sheep, he fell on these leaders, slew them all in a few minutes, and soon had the luckless sheep stampeding in a thousand different directions. For weeks afterward I was almost daily accosted by some anxious shepherd, who asked, "Have you seen any stray OTO sheep lately?" and usually I was obliged to say I had; one day it was, "Yes, I came on some five or six carcasses by Diamond Springs;" or another, it was to the effect that I had seen a small "bunch" running on the Malpai Mesa; or again, "No, but Juan Meira saw about twenty, freshly killed, on the Cedra Monte two days ago."